DU A Unit Admission Question Solution 2003-2004

DU A Unit Admission Question Solution 2003-2004

āύāĻŋāĻšā§‡āϰ āĻ­āĻŋāĻĄāĻŋāĻ“āϤ⧇ āĻĻ⧇āϖ⧇ āύāĻžāĻ“ āĻŦāĻŋāĻ¸ā§āϤāĻžāϰāĻŋāϤ:

āϕ⧋āĻ°ā§āϏāϟāĻŋ āĻ•āĻŋāύāϤ⧇ āĻĒāĻžāĻļ⧇āϰ āĻŦāĻžāϟāύāϟāĻŋ āĻ•ā§āϞāĻŋāĻ• āĻ•āϰ:   

 

āϕ⧋āĻ°ā§āϏ⧇āϰ āĻĄā§‡āĻŽā§‹ āĻ­āĻŋāĻĄāĻŋāĻ“(āĻāĻ­āĻžāĻŦ⧇ āĻĒāĻĻāĻžāĻ°ā§āĻĨāĻŦāĻŋāĻœā§āĻžāĻžāύ+āϰāϏāĻžā§Ÿāύ+āωāĻšā§āϚāϤāϰāĻ—āĻŖāĻŋāϤ āĻāϰ āĻŦāĻŋāĻ—āϤ āĻŦāĻŋāĻļ āĻŦāĻ›āϰ⧇āϰ āϏāĻ•āϞ āĻĒā§āϰāĻļā§āύ⧇āϰ āϏāĻŽāĻžāϧāĻžāύ āĻĨāĻžāĻ•āĻŦ⧇ āĻ­āĻŋāĻĄāĻŋāĻ“āϤ⧇)

 

Physics

  1. āĻĻ⧁āϟāĻŋ āĻ—ā§āϰāĻšā§‡āϰ āϘāύāĻ¤ā§āĻŦ āϏ⧁āώāĻŽ āĻāĻŦāĻ‚ āϏāĻŽāĻžāύ, āĻ•āĻŋāĻ¨ā§āϤ⧁ āĻĒā§āϰāĻĨāĻŽāϟāĻŋāϰ āĻŦā§āϝāĻžāϏāĻžāĻ°ā§āϧ āĻĻā§āĻŦāĻŋāϤ⧀āϝāĻŧāϟāĻŋāϰ āĻĻā§āĻŦāĻŋāϗ⧁āĻŖāĨ¤ āĻĒā§āϰāĻĨāĻŽ āĻ—ā§āϰāĻšā§‡āϰ āωāĻĒāϰāĻŋāĻ­āĻžāϗ⧇āϰ āĻāĻŦāĻ‚ āĻĻā§āĻŦāĻŋāϤ⧀āϝāĻŧ āĻ—ā§āϰāĻšā§‡āϰ āωāĻĒāϰāĻŋāĻ­āĻžāϗ⧇āϰ āĻ…āύ⧁āĻĒāĻžāϤ āĻšāϞāĻžā§‡-

    1. 2:1
    2. 1:2
    3. 4:1
    4. ā§Ē:1

    Ans.2:1

  2. āĻŦāĻžāϝāĻŧ⧁āϤ⧇ āĻāĻ• āĻŦāĻžāĻ•ā§āϏ āϤ⧁āϞāĻžāϰ āĻ“āϜāύ āĻāĻŦāĻ‚ 4 āϟāĻŋ āϞāĻžā§‡āĻšāĻžāϰ āĻŦāϞ⧇āϰ āĻ“āϜāύ āĻĒā§āϰāϤāĻŋāĻ•ā§āώ⧇āĻ¤ā§āϰ⧇ āĻ āĻŋāĻ• 1 kg āĻĻ⧇āĻ–āĻž āϗ⧇āϞ⧇-
    1. āϤ⧁āϞāĻžāϰ āĻ­āϰ āĻ“ āϞāĻžā§‡āĻšāĻžāϰ āĻŦāϞāϗ⧁āϞāĻžā§‡āϰ āĻ­āϰ āϏāĻŽāĻžāύ
    2. āϤ⧁āϞāĻžāϰ āĻ­āϰ āĻŦ⧇āĻļāĻŋ
    3. āĻ­āϰ⧇āϰ āϤ⧁āϞāĻžāύāĻž āĻŦāϞ⧇āϰ āϏāĻ‚āĻ–ā§āϝāĻžāϰ āωāĻĒāϰ āύāĻŋāĻ°ā§āĻ­āϰ āĻ•āϰāĻŦ⧇
    4. āϤ⧁āϞāĻžāϰ āĻ­āϰ āĻ•āĻŽ

    Ans. āϤ⧁āϞāĻžāϰ āĻ­āϰ āĻ“ āϞāĻžā§‡āĻšāĻžāϰ āĻŦāϞāϗ⧁āϞāĻžā§‡āϰ āĻ­āϰ āϏāĻŽāĻžāύ

  3. 20°C-āĻāϰ 2kg āĻĒāĻžāύāĻŋāϰ āϏāĻ™ā§āϗ⧇ 50°C āĻāϰ Ikg āĻĒāĻžāύāĻŋ āĻŽāĻŋāĻļāĻžāϞ⧇ āĻŽāĻŋāĻļā§āϰāϪ⧇āϰ āϤāĻžāĻĒāĻŽāĻžāĻ¤ā§āϰāĻž āĻšāĻŦ⧇-
    1. 35°C
    2. 50°C
    3. 30°C
    4. 70°C

    Ans. 30°C

  4. āĻĒā§āϝāĻžāϰāĻžāĻļ⧁āϟ āĻĻāĻŋāϝāĻŧ⧇ āĻāĻ• āĻŦāĻŋāĻŽāĻžāύāϏ⧇āύāĻž 5km āωāĻšā§āϚāϤāĻž āĻĨ⧇āϕ⧇ āύ⧇āĻŽā§‡āĨ¤ āĻāϞāĻžā§‡āĨ¤ āĻ­ā§‚āĻŽāĻŋ āĻ¸ā§āĻĒāĻ°ā§āĻļ⧇āϰ āϏāĻŽāϝāĻŧ āϤāĻžāϰ āĻ¤ā§āĻŦāϰāĻŖ āĻšāϞāĻžā§‡-(R= Radius of Earth)
    1. g
    2. \(\frac{g(R+5 k m)^{2}}{R^{2}}\)
    3. 0
    4. \(\frac{g R^{2}}{(R+5 k m)^{2}}\)

    Ans.0

  5. āϕ⧋āύāϟāĻŋ āϏāĻ°ā§āĻŦāĻžāĻĒ⧇āĻ•ā§āώāĻž āĻĻ⧁āĻ°ā§āĻŦāϞ āĻŦāϞ-
    1. āĻŽāĻšāĻžāĻ•āĻ°ā§āώ āĻŦāϞ
    2. āϚ⧌āĻŽā§āĻŦāĻ• āĻŦāϞ
    3. āϤāĻĄāĻŧāĻŋā§Ž āϚ⧌āĻŽā§āĻŦāĻ• āĻŦāϞ
    4. āύāĻŋāωāĻ•ā§āϞāĻŋāϝāĻŧ āĻŦāϞ

    Ans. āĻŽāĻšāĻžāĻ•āĻ°ā§āώ āĻŦāϞ

  6. āĻŽāĻ™ā§āĻ—āϞ āĻ—ā§āϰāĻšā§‡āϰ āĻŦā§āϝāĻžāϏāĻžāĻ°ā§āϧ āĻ“ āĻ­āϰ āϝāĻĨāĻžāĻ•ā§āϰāĻŽā§‡ āĻĒ⧃āĻĨāĻŋāĻŦā§€āϰ āĻŦā§āϝāĻžāϏāĻžāĻ°ā§āϧ āĻ“ āĻ­āϰ⧇āϰ 0.532 āϗ⧁āĻŖ āĻ“ 0.11 āϗ⧁āĻŖāĨ¤ āĻŽāĻ™ā§āĻ—āϞ āĻ—ā§āϰāĻšā§‡ āĻāĻ•āϟāĻŋ āϏ⧇āϕ⧇āĻ¨ā§āĻĄ āĻĻā§‹āϞāϕ⧇āϰ āĻĻā§‹āϞāύāĻ•āĻžāϞ āĻ•āϤ?
    1. 4s
    2. 3.2s
    3. 1.25 s
    4. 0.75 s

    Ans. 3.2s

  7. āĻĒāĻžāύāĻŋ, āĻŦāϰāĻĢ āĻ“ āϜāϞ⧀āϝāĻŧ āĻŦāĻžāĻˇā§āĻĒ āϝ⧇ āϤāĻžāĻĒāĻŽāĻžāĻ¤ā§āϰāĻžāϝāĻŧ āĻāĻ•āϏāĻ™ā§āϗ⧇ āĻĨāĻžāĻ•āϤ⧇ āĻĒāĻžāϰ⧇ āϤāĻžāĻšāϞāĻžā§‡-
    1. 0°C
    2. 273.16 K
    3. 100°C
    4. 4°C

    Ans. 273.16 K

  8. āφāϞāĻžā§‡āĻ• āϤāϰāĻ™ā§āϗ⧇āϰ āύāĻŋāĻŽā§āύ⧋āĻ•ā§āϤ āωāĻĒāĻžāĻĻāĻžāύ āφāϛ⧇-
    1. āĻļ⧁āϧ⧁ āĻŦāĻŋāĻĻā§āĻ¯ā§ā§Ž āĻ•ā§āώ⧇āĻ¤ā§āϰ
    2. āĻļ⧁āϧ⧁ āϚ⧁āĻŽā§āĻŦāĻ• āĻ•ā§āώ⧇āĻ¤ā§āϰ
    3. āϏāĻŽāĻžāĻ¨ā§āϤāϰāĻžāϞ⧇ āĻŦāĻŋāĻĻā§āĻ¯ā§ā§Ž āĻ“ āϚ⧁āĻŽā§āĻŦāĻ• āĻ•ā§āώ⧇āĻ¤ā§āϰ
    4. āĻĒāϰāĻ¸ā§āĻĒāϰ āϞāĻŽā§āĻŦ āĻŦāĻŋāĻĻā§āĻ¯ā§ā§Ž āĻ“ āϚ⧁āĻŽā§āĻŦāĻ• āĻ•ā§āώ⧇āĻ¤ā§āϰ

    Ans. āĻĒāϰāĻ¸ā§āĻĒāϰ āϞāĻŽā§āĻŦ āĻŦāĻŋāĻĻā§āĻ¯ā§ā§Ž āĻ“ āϚ⧁āĻŽā§āĻŦāĻ• āĻ•ā§āώ⧇āĻ¤ā§āϰ

  9. āĻāĻ•āϟāĻŋ āĻ•ā§āϝāĻžāĻŽā§‡āϰāĻž āĻ…āϏ⧀āĻŽ āĻĻā§‚āϰāĻ¤ā§āĻŦ⧇āϰ āĻŦāĻ¸ā§āϤ⧁āϤ⧇ āĻĢā§‹āĻ•āĻžāϏ āĻ•āϰāϞ⧇ āϞ⧇āĻ¨ā§āϏ āĻ“ āĻĢāĻŋāĻ˛ā§āĻŽā§‡āϰ āĻŽāĻ§ā§āϝ⧇ āĻĻā§‚āϰāĻ¤ā§āĻŦ āĻĨāĻžāϕ⧇ 2cmāĨ¤ āĻāĻ–āύ 2m āĻĻā§‚āϰāĻ¤ā§āĻŦ⧇ āĻĢā§‹āĻ•āĻžāϏ āĻ•āϰāϞ⧇ āϞ⧇āĻ¨ā§āϏāϟāĻŋ āĻ•āϤāĻ–āĻžāύāĻŋ āϏāϰāĻžāϤ⧇ āĻšāĻŦ⧇-
    1. 0.01 cm
    2. 0.02 cm
    3. 0.03 cm
    4. 0.1 cm

    Ans. 0.02 cm

  10. āĻāĻ•āϟāĻŋ āϏāĻŽāĻžāĻ¨ā§āϤāϰāĻžāϞ āĻĒāĻžāϤ āϧāĻžāϰāϕ⧇āϰ āĻĒāĻžāϤāĻĻā§āĻŦāϝāĻŧ⧇āϰ āĻŽāĻ§ā§āϝāĻŦāĻ°ā§āϤ⧀ āĻ¸ā§āĻĨāĻžāύ āĻŦāĻžāϝāĻŧ⧁āϰ (k = 1)-āĻāϰ āĻĒāϰāĻŋāĻŦāĻ°ā§āϤ⧇ āĻāĻ•āϟāĻŋ (k = 20) āĻĄāĻžāχ-āχāϞ⧇āĻ•āĻŸā§āϰāĻŋāĻ• āĻ§ā§āϰ⧁āĻŦāϕ⧇āϰ āĻĒāĻĻāĻžāĻ°ā§āĻĨ āĻĻā§āĻŦāĻžāϰāĻž āĻĒā§‚āϰāĻŖ āĻ•āϰāĻž āĻšāϞāĻžā§‡, āĻ•āĻŋāĻ¨ā§āϤ⧁ āĻĻ⧁āχ āĻĒāĻžāϤ⧇ āĻāĻ•āχ āφāϧāĻžāύ āϰāĻžāĻ–āĻž āĻšāϞāĻžā§‡-
    1. āĻļ⧁āϧ⧁ āĻŦāĻŋāĻ­āĻŦ āĻĒāĻžāĻ°ā§āĻĨāĻ•ā§āϝ (āĻĒāĻžāϤāĻĻā§āĻŦāϝāĻŧ⧇āϰ) āĻĒāϰāĻŋāĻŦāĻ°ā§āϤāĻŋāϤ āĻšāĻŦ⧇
    2. āĻļ⧁āϧ⧁ āϧāĻžāϰāĻ•āĻ¤ā§āĻŦ āĻĒāϰāĻŋāĻŦāĻ°ā§āϤāĻŋāϤ āĻšāĻŦ⧇
    3. āϧāĻžāϰāĻ•āĻ¤ā§āĻŦ āĻ“ āĻŦāĻŋāĻ­āĻŦ āĻĒāĻžāĻ°ā§āĻĨāĻ•ā§āϝ āĻāĻ•āχ āĻĨāĻžāĻ•āĻŦ⧇
    4. āωāĻ­āϝāĻŧāχ āĻĒāϰāĻŋāĻŦāĻ°ā§āϤāĻŋāϤ āĻšāĻŦ⧇

    Ans. āωāĻ­āϝāĻŧāχ āĻĒāϰāĻŋāĻŦāĻ°ā§āϤāĻŋāϤ āĻšāĻŦ⧇

  11. āϝ⧇ āϝāĻ¨ā§āĻ¤ā§āϰāĻžāĻ‚āĻļ āĻĻāĻŋāĻ•-āĻĒāϰāĻŋāĻŦāĻ°ā§āϤ⧀ āĻŦāĻŋāĻĻā§āĻ¯ā§ā§Ž āĻĒā§āϰāĻŦāĻžāĻšāϕ⧇ āĻāĻ•-āĻĻāĻŋāĻ•āĻŦāĻ°ā§āϤ⧀ āĻ•āϰ⧇āĨ¤ āϤāĻžāϰ āύāĻžāĻŽ-
    1. āϰāĻžā§‡āϧ
    2. āĻĨāĻžāĻ°ā§āĻŽāĻŋāĻ¸ā§āϟāϰ
    3. āĻŸā§āϰāĻžāĻ¨ā§āϏāĻĢāĻ°ā§āĻŽāĻžāϰ
    4. āϰ⧇āϟāĻŋāĻĢāĻžāϝāĻŧāĻžāϰ

    Ans. āϰ⧇āϟāĻŋāĻĢāĻžāϝāĻŧāĻžāϰ

  12. 1000kg āĻ­āϰ āĻŦāĻŋāĻļāĻŋāĻˇā§āϟ āĻāĻ•āϟāĻŋ āĻ—āĻžāĻĄāĻŧāĻŋ āϏāĻŽāĻžāĻ¨ā§āϤāϰāĻžāϞ āϰāĻžāĻ¸ā§āϤāĻžāϝāĻŧ \(10 \mathrm{~ms}^{-1}\) āϏāĻŽāĻ—āϤāĻŋāϤ⧇ āϚāϞāĻž āĻ…āĻŦāĻ¸ā§āĻĨāĻžāϝāĻŧ āĻŦāĻŋāĻĒāϰ⧀āϤ⧇ āĻĻāĻŋāϕ⧇ 400N āĻŦāϞ āĻ…āύ⧁āĻ­āĻŦ āĻ•āϰ⧇āĨ¤ āĻ āĻ…āĻŦāĻ¸ā§āĻĨāĻžāϝāĻŧ āĻ—āĻžāĻĄāĻŧāĻŋāϟāĻŋāϰ āχāĻžā§āϜāĻŋāύ⧇āϰ āĻ•ā§āώāĻŽāϤāĻž āĻšāϞ
    1. 4 kw
    2. 4200 W
    3. 4500 W
    4. 400 W

    Ans. 4 kw

  13. āĻāĻ•āϟāĻŋ āĻŸā§āϰāĻžāĻ¨ā§āϏāĻĢāĻ°ā§āĻŽāĻžāϰ⧇āϰ āĻĒā§āϰāĻžāχāĻŽāĻžāϰāĻŋ āĻāĻŦāĻ‚ āϏ⧇āϕ⧇āĻ¨ā§āĻĄāĻžāϰāĻŋ āϤāĻžāϰ⧇āϰ āĻ…āύ⧁āĻĒāĻžāϤ 20:1 āĻāĻŦāĻ‚ āϏ⧇āϕ⧇āĻ¨ā§āĻĄāĻžāϰāĻŋāϤ⧇ 20 āĻ“āĻšāĻŽ-āĻāϰ āϰāĻžā§‡āϧ āϞāĻžāĻ—āĻžāύāĻžā§‡ āφāϛ⧇āĨ¤ āϝāĻĻāĻŋ āĻĒā§āϰāĻžāχāĻŽāĻžāϰāĻŋāϤ⧇ 220 āĻ­āĻžā§‡āĻ˛ā§āϟ āĻĒā§āϰāϝāĻŧāĻžā§‡āĻ— āĻ•āϰāĻž āĻšāϝāĻŧ āϤāĻžāĻšāϞ⧇ āĻāϰ āĻŽāĻ§ā§āϝ⧇ āĻŦāĻŋāĻĻā§āĻ¯ā§ā§Ž āĻĒā§āϰāĻŦāĻžāĻš āĻšāϝāĻŧ
    1. 0.55A
    2. 27.5mA
    3. 27.5A
    4. 5.5mA

    Ans. 27.5mA

  14. āĻāĻ•āϟāĻŋ āϛ⧇āϞ⧇ āĻ•ā§āϰāϟāĻŋāĻĒā§‚āĻ°ā§āĻŖ āĻšā§‹āϖ⧇ 60cm āĻāϰ āĻ…āϧāĻŋāĻ• āĻĻā§‚āϰ⧇ āĻŦāĻ¸ā§āϤ⧁ āĻĻ⧇āĻ–āϤ⧇ āĻĒāĻžāϝāĻŧ āύāĻžāĨ¤ āϏāĻ‚āĻļāĻžā§‡āϧāĻŋāϤ āϞ⧇āĻ¨ā§āϏ⧇āϰ āĻ•ā§āώāĻŽāϤāĻž āĻ•āϤ āĻšāϞ⧇ āϏ⧇ āϏāĻšāĻœā§‡ āĻ¸ā§āĻĒāĻˇā§āϟāĻ­āĻžāĻŦ⧇ āĻĻā§‚āϰ⧇āϰ āĻŦāĻ¸ā§āϤ⧁āϕ⧇ āĻĻ⧇āĻ–āϤ⧇ āĻĒāĻžāϰāĻŦ⧇
    1. -2.5D
    2. – 1.67D
    3. + 2.5D
    4. + 1.6D

    Ans. – 1.67D

  15. āĻĒā§āϰāϤāĻŋāϟāĻŋ 60W-āĻāϰ 5āϟāĻŋ āĻŦāĻžāϤāĻŋ āĻ•āϝāĻŧ⧇āĻ• āϘāĻ¨ā§āϟāĻž āĻ•āϰ⧇ āĻœā§āĻŦāĻžāϞāĻžāύāĻžā§‡ āĻšāϝāĻŧāĨ¤ āĻĒā§āϰāϤāĻŋ āχāωāύāĻŋāϟ āĻŦāĻŋāĻĻā§āĻ¯ā§ā§Ž āĻŽā§‚āĻ˛ā§āϝ 3.00 āϟāĻžāĻ•āĻž āĻāĻŦāĻ‚ āĻŽāĻžāϏ⧇ 30 āĻĻāĻŋāύ āĻŦāĻŋāĻĻā§āĻ¯ā§ā§Ž āĻŦāĻŋāϞ 162.00 āϟāĻžāĻ•āĻž āĻšāϞ⧇ āĻĻ⧈āύāĻŋāĻ• āĻŦāĻŋāĻĻā§āĻ¯ā§ā§Ž āĻŦā§āϝāĻŦāĻšāĻžāϰ⧇āϰ āϏāĻŽāϝāĻŧāĻ•āĻžāϞ āĻ•āϤ?
    1. 10 h
    2. 6h
    3. 8h
    4. 4h

    Ans. 6h

  16. āĻŦāĻžāϝāĻŧ⧁āϰ āϏāĻžāĻĒ⧇āĻ•ā§āώ⧇ āĻ•āĻžāĻšā§‡āϰ āĻĒā§āϰāϤāĻŋāϏāϰāĻžāĻ™ā§āĻ• 1.06 āĻāĻŦāĻ‚ āĻŦāĻžāϝāĻŧ⧁ āϏāĻžāĻĒ⧇āĻ•ā§āώ⧇ āĻĒāĻžāύāĻŋāϰ āĻĒā§āϰāϤāĻŋāϏāϰāĻžāĻ™ā§āĻ• 1.3 āĻšāϞ⧇,āĻĒāĻžāύāĻŋāϰ āϏāĻžāĻĒ⧇āĻ•ā§āώ⧇ āĻ•āĻžāĻšā§‡āϰ āĻĒā§āϰāϤāĻŋāϏāϰāĻžāĻ™ā§āĻ• āĻšāϞāĻžā§‡
    1. 0.83
    2. 1.05
    3. 1.20
    4. 0.63

    Ans. 0.83

  17. āĻŦā§āϝāĻžāϟāĻžāϰāĻŋāϰ āϧāύāĻžāĻ¤ā§āĻŽāĻ• āĻĒā§āϰāĻžāĻ¨ā§āϤ āϝāĻ–āύ pn āĻĄāĻžāϝāĻŧāĻĄā§‡āϰ p āĻĒā§āϰāĻžāĻ¨ā§āϤ⧇ āĻāĻŦāĻ‚ āĻ‹āĻŖāĻžāĻ¤ā§āĻŽāĻ• āĻĒā§āϰāĻžāĻ¨ā§āϤ āϝāĻ–āύ pn āĻĄāĻžāϝāĻŧāĻžā§‡āĻĄā§‡āϰ n āĻĒā§āϰāĻžāĻ¨ā§āϤ⧇ āϏāĻ‚āϝ⧁āĻ•ā§āϤ āĻ•āϰāĻž āĻšāϝāĻŧāĨ¤ āϤāĻ–āύ pn āĻĄāĻžāϝāĻŧāĻžā§‡āĻĄ-
    1. āĻļā§‚āĻ¨ā§āϝ āĻŦāĻžāϝāĻŧāĻžāϏ
    2. āĻĒāĻļā§āϚāĻžāĻ¤ā§āĻŽāĻ–ā§€ āĻŦāĻžāϝāĻŧāĻžāϏ
    3. āύāĻŋāϰāĻĒ⧇āĻ•ā§āώ āĻŦāĻžāϝāĻŧāĻžāϏ
    4. āϏāĻŽā§āĻŽā§āĻ– āĻŦāĻžāϝāĻŧāĻžāϏ

    Ans. āĻļā§‚āĻ¨ā§āϝ āĻŦāĻžāϝāĻŧāĻžāϏ

  18. āĻāĻ•āϟāĻŋ āĻŦāϞ 4kg āĻ­āĻŦāĻŋāĻļāĻŋāĻˇā§āϟ āĻ¸ā§āĻĨāĻŋāϰ āĻŦāĻ¸ā§āϤ⧁āϰ āωāĻĒāϰ āĻ•ā§āϰāĻŋāϝāĻŧāĻž āĻ•āϰ⧇āĨ¤ āĻāϰ āĻĢāϞ⧇ āĻŦāĻ¸ā§āϤ⧁āϟāĻŋ 6 āϏ⧇āϕ⧇āĻ¨ā§āĻĄā§‡ 30 m/s āĻŦ⧇āĻ— āĻĒā§āϰāĻžāĻĒā§āϤ āĻšāϝāĻŧāĨ¤ āĻŦāϞ⧇āϰ āĻŽāĻžāύ āĻ•āϤ-
    1. 30N
    2. 20N
    3. 18 N
    4. None

    Ans. 20N

  19. āĻāĻ•āϟāĻŋ āĻŸā§āϰāĻžāĻ¨ā§āϏāĻĢāĻ°ā§āĻŽāĻžāϰ⧇āϰ āĻĒā§āϰāĻžāχāĻŽāĻžāϰāĻŋ āĻ“ āϏ⧇āϕ⧇āĻ¨ā§āĻĄāĻžāϰāĻŋ āϤāĻžāϰ⧇āϰ āϕ⧁āĻ¨ā§āĻĄāϞ⧀āϰ āĻ…āύ⧁āĻĒāĻžāϤ 10:1āĨ¤ āĻāϰ āϏ⧇āϕ⧇āĻ¨ā§āĻĄāĻžāϰāĻŋāϤ⧇ 10 āϰāĻžā§‡āϧ āϞāĻžāĻ—āĻžāύāĻžā§‡ āφāϛ⧇āĨ¤ āϝāĻĻāĻŋ āĻĒā§āϰāĻžāχāĻŽāĻžāϰāĻŋāϤ⧇ 200V āĻĒā§āϰāϝāĻŧāĻžā§‡āĻ— āĻ•āϰāĻž āĻšāϝāĻŧ, āϤāĻžāĻšāϞ⧇ āĻāĻ–āĻžāύ⧇ āĻŦāĻŋāĻĻā§āĻ¯ā§ā§Ž āĻĒā§āϰāĻŦāĻžāĻš āĻ•āϤ-
    1. 0.05A
    2. 0.8A
    3. 1.2A
    4. 0.2A

    Ans. 0.2A

  20. āĻĻ⧁āϟāĻŋ āϚāĻžāĻ°ā§āϜ āϝāĻĨāĻžāĻ•ā§āϰāĻŽā§‡ –60C āĻāĻŦāĻ‚ +60C āĻĒāϰāĻ¸ā§āĻĒāϰ āĻĨ⧇āϕ⧇ 0.12m āĻĻā§‚āϰāĻ¤ā§āĻŦ⧇ āĻ…āĻŦāĻ¸ā§āĻĨāĻŋāϤāĨ¤ āϚāĻžāĻ°ā§āϜ āĻĻ⧁āϟāĻŋāϰ āϏāĻ‚āϝāĻžā§‡āϜāύ āϰ⧇āĻ–āĻžāϰ āĻ āĻŋāĻ• āĻŽāĻ§ā§āϝāĻ¸ā§āĻĨāϞ⧇ āĻĒā§āϰāĻžāĻŦāĻ˛ā§āϝ āĻšāĻŦ⧇?
    1. \(3 \times 10^{14} \mathrm{NC}^{-1}\)
    2. \(3.5 \times 10^{15} \mathrm{~N}\)
    3. \(2.5 \times 10^{16} \mathrm{~N}\)
    4. \(4 \times 10^{15} \mathrm{~N}\)

    Ans. \(3 \times 10^{14} \mathrm{NC}^{-1}\)

  21. 6.65m āĻ—āĻ­ā§€āϰ āĻāĻ•āϟāĻŋ āĻĒ⧁āϕ⧁āϰ āĻĒāĻžāύāĻŋāϤ⧇ āĻ­āĻ°ā§āϤāĻŋāĨ¤ āĻĒāĻžāύāĻŋāϰ āĻĒā§āϰāϤāĻŋāϏāϰāĻžāĻ™ā§āĻ• 1.33 āĻšāϞ⧇, āĻĒ⧁āϕ⧁āϰ⧇āϰ āϤāϞāĻĻ⧇āĻļ āĻ•āϤ āωāĻĒāϰ⧇ āĻĻ⧇āĻ–āĻž āϝāĻžāĻŦ⧇-
    1. 6m
    2. 20m
    3. 5m
    4. 10m

    Ans. 5m

  22. āύāĻŋāĻŽā§āύ⧇āϰ āϏāĻžāĻ°ā§āĻ•āĻŋāϟ A-B āĻāϰ āĻŽāĻ§ā§āϝ⧇ āϏāĻŽāϤ⧁āĻ˛ā§āϝ āϰāĻžā§‡āϧ āĻšāϞāĻžā§‡-

    1. \(3 \Omega\)
    2. \(2 \Omega\)
    3. \(7 \Omega\)
    4. \(20 \Omega\)

    Ans.\(2 \Omega\)

  23. āĻāĻ•āϟāĻŋ āϘāϰ⧇āϰ āϕ⧋āύāĻžā§‡ āĻĻ⧇āϝāĻŧāĻžāϞ⧇āϰ āĻ•ā§āώ⧇āĻ¤ā§āϰāĻĢāϞ \(30 \mathrm{~m}^{2}\) āĻĻ⧇āϝāĻŧāĻžāϞāϟāĻŋ āχāĻŸā§‡āϰ | āϤ⧈āϰāĻŋ āĻāĻŦāĻ‚ āĻāϰ āĻĒ⧁āϰ⧁āĻ¤ā§āĻŦ 25cm āϘāϰ⧇āϰ āĻŦāĻžāχāϰ⧇āϰ āϤāĻžāĻĒāĻŽāĻžāĻ¤ā§āϰāĻž 30°C āĻšāϞ⧇ āĻĻ⧇āϝāĻŧāĻžāϞ āϕ⧀ āĻšāĻžāϰ⧇ āϤāĻžāĻĒ āϘāϰ⧇āϰ āĻŽāĻ§ā§āϝ⧇ āĻĒā§āϰāĻŦ⧇āĻļ āĻ•āϰāϛ⧇ āύāĻŋāĻ°ā§āĻŖāϝāĻŧ āĻ•āϰāĨ¤ āχāĻŸā§‡āϰ āϤāĻžāĻĒ āĻĒāϰāĻŋāĻŦāĻžāĻšāĻ•āĻ¤ā§āĻŦ \(\mathbf{0} .6 \mathbf{W m}^{-1} \mathbf{K}^{-1}\)
    1. 280 W
    2. 284 W
    3. 288 W
    4. 292 W

    Ans. 288 W

  24. āϏāĻŦāĻšā§‡āϝāĻŧ⧇ āĻ•āĻŽ āĻ­āϰ⧇āϰ āĻ•āĻŖāĻŋāĻ•āĻž āϕ⧋āύāϟāĻŋ?
    1. āχāϞ⧇āĻ•āĻŸā§āϰāύ
    2. āĻĒā§āϰāĻžā§‡āϟāύ
    3. āφāϞāĻĢāĻž
    4. āύāĻŋāωāĻŸā§āϰāύ

    Ans. āχāϞ⧇āĻ•āĻŸā§āϰāύ

  25. āϝāĻĻāĻŋ \(\overrightarrow{\mathbf{A}}=\hat{\mathbf{i}}+\hat{\mathbf{j}}+\hat{\mathbf{k}}, \overrightarrow{\mathbf{B}}=2 \hat{\mathbf{i}}+2 \hat{\mathbf{j}}+2 \hat{\mathbf{k}}\), then \(\overrightarrow{\mathbf{A}} \times \overrightarrow{\mathbf{B}}=\)
    1. \(3 \vec{i}+3 \hat{j}+3 \hat{k}\)
    2. \(2 \hat{\mathrm{i}}+2 \hat{\mathrm{j}}+2 \hat{\mathrm{k}}\)
    3. \(\sqrt{12(\hat{i}+\hat{j}+\hat{k})}\)
    4. 0

    Ans. 0

  26. āϭ⧁āĻŽāĻŋāϰ āϏāĻ™ā§āϗ⧇ āϏāĻ°ā§āĻŦāύāĻŋāĻŽā§āύ 30° āϕ⧋āϪ⧇ āϤāϞ⧇ āĻ¸ā§āĻĨāĻžāĻĒāĻŋāϤ āĻŦāĻ¸ā§āϤ⧁ āĻĒāĻŋāĻ›āϞ⧇ āύ⧇āĻŽā§‡ āϝāĻžāϝāĻŧāĨ¤ āϘāĻ°ā§āώāĻŖāĻžāĻ™ā§āĻ• āĻ•āϤ?
    1. sin 30°
    2. tan 30°
    3. cos 30°
    4. 1

    Ans. cos 30°

  27. āĻ•āĻžāĻœā§‡āϰ āĻĒāϰāĻŋāĻŽāĻžāĻŖ āϏāĻŦāĻšā§‡āϝāĻŧ⧇ āĻŦ⧇āĻļāĻŋ āĻšāϝāĻŧ āϝāĻ–āύ āĻĒā§āϰāϝ⧁āĻ•ā§āϤ āĻŦāϞ āĻ“ āϏāϰāϪ⧇āϰ āĻŽāĻ§ā§āϝ⧇ āϕ⧋āϪ⧇āϰ āĻŽāĻžāύ āĻšāϞāĻžā§‡-
    1. 0°
    2. 45°
    3. 90°
    4. 30°

    Ans. 0°

  28. 5m āĻĻ⧈āĻ°ā§āĻ˜ā§āϝ āĻāĻŦāĻ‚ 5mm āĻŦā§āϝāĻžāϏāĻŦāĻŋāĻļāĻŋāĻˇā§āϟ āĻāĻ•āϟāĻŋ āϤāĻžāϰāϕ⧇ 98N āĻŦāϞ āĻĻā§āĻŦāĻžāϰāĻžāĨ¤ āϟāĻžāύāĻž āĻšāϞāĻžā§‡āĨ¤ āϤāĻžāϰāϟāĻŋ āĻ•āϤāϟ⧁āϕ⧁ āĻŦ⧃āĻĻā§āϧāĻŋ āĻĒāĻžāĻŦ⧇- \(\left[\mathrm{Y}=2 \times 10^{11} \mathrm{Nm}^{-2}\right]\)
    1. \(2 \times 10^{-2} \mathrm{~m}\)
    2. \(1.25 \times 10^{-4} \mathrm{~m}\)
    3. \(4 \times 10^{-2} \mathrm{~m}\)
    4. \(1.5 \times 10^{-2} \mathrm{~m}\)

    Ans. \(1.25 \times 10^{-4} \mathrm{~m}\)

  29. āĻāĻ•āϟāĻŋ āĻŸā§āϰ⧇āύ āĻŦāĻžāρāĻļāĻŋ āĻŦāĻžāϜāĻžāϞ⧇ āĻāĻ•āϟāĻŋ āĻĒā§āϞāĻžāϟāĻĢāĻ°ā§āĻŽā§‡āϰ āĻĻāĻŋāϕ⧇ 90kmh-1 āĻ—āϤāĻŋāϤ⧇ āĻāĻ—āĻžā§‡āĻšā§āϛ⧇āĨ¤ āĻŦāĻžāĻļāĻŋāϰ āĻ•āĻŽā§āĻĒāĻžāĻ™ā§āĻ• 600Hz āĻ“ āĻļāĻŦā§āĻĻ⧇āϰ āĻŦ⧇āĻ— \(325 \mathrm{~ms}^{-1}\) āĻšāϞ⧇ āĻĻāĻ¨ā§āĻĄāĻžāϝāĻŧāĻŽāĻžāύ āĻļā§āϰ⧋āϤāĻžāϰ āĻ•āĻžāύ⧇ āϐ āĻļāĻŦā§āĻĻ⧇āϰ āφāĻĒāĻžāϤ āĻ•āĻŽā§āĻĒāĻžāĻ™ā§āĻ• āĻ•āϤ āĻŽāύ⧇ āĻšāĻŦ⧇?
    1. 440 Hz
    2. 550 Hz
    3. 445 Hz
    4. 650 Hz

    Ans. 650 Hz

  30. āĻ…ā§āϝāĻžāϞ⧁āĻŽāĻŋāύāĻŋāϝāĻŧāĻžāĻŽ āύāĻŋāωāĻ•ā§āϞāĻŋāϝāĻŧāĻžāϏ⧇āϰ āϏāĻ‚āϕ⧇āϤ āĻšāĻšā§āϛ⧇ \({ }_{13} \mathrm{~A} l^{27}\) -āĻāϰ āύāĻŋāωāĻŸā§āϰāύ āϏāĻ‚āĻ–ā§āϝāĻž āĻ•āϤ?
    1. 27
    2. 13
    3. 40
    4. 14

    Ans. 14

Chemistry

  1. āĻāĻ•āϟāĻŋ \(250 \mathrm{~cm}^{3}\) āĻĻā§āϰāĻŦāϪ⧇ \(5.3 \mathrm{~g} \mathrm{Na}_{2} \mathrm{CO}_{3}\) āĻĻā§āϰāĻŦā§€āĻ­ā§‚āϤ āϰāϝāĻŧ⧇āϛ⧇āĨ¤ āĻāχ āĻĻā§āϰāĻŦāĻŖāϟāĻŋāϰ āϘāύāĻŽāĻžāĻ¤ā§āϰāĻž āĻ•āϤ āĻŽāĻžā§‡āϞāĻžāϰ āĻšāĻŦ⧇-
    1. 0.2 M
    2. 5.3 M
    3. 10.6 M
    4. 1.0 M

    Ans. 0.2 M

  2. āύāĻŋāĻŽā§āύ⧇āϰ āϕ⧋āύ āϝ⧌āϗ⧇ āύāĻŋāσāϏāĻ™ā§āĻ— āχāϞ⧇āĻ•āĻŸā§āϰāύ āĻœā§‹āĻĄāĻŧ āφāϛ⧇?
    1. \(\mathrm{CH}_{4}\)
    2. \(\mathrm{BCl}_{3}\)
    3. \(\mathrm{BeCl}_{2}\)
    4. \(\mathrm{NH}_{3}\)

    Ans. \(\mathrm{NH}_{3}\)

  3. āϕ⧋āύ āϕ⧋āϝāĻŧāĻžāĻ¨ā§āϟāĻžāĻŽ āϏāĻ‚āĻ–ā§āϝāĻž āχāϞ⧇āĻ•ā§āĻŸā§āϰāύ āĻ…āϰāĻŦāĻŋāϟāĻžāϞ⧇āϰ āφāĻ•ā§ƒāϤāĻŋ āύāĻŋāĻ°ā§āĻĻ⧇āĻļ āĻ•āϰ⧇?
    1. n
    2. \(l\)
    3. m
    4. S

    Ans.\(l\)

  4. āϕ⧋āύāϟāĻŋ āϜāĻžāϰāĻŖ-āĻŦāĻŋāϜāĻžāϰāĻŖ āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻž āύāϝāĻŧ?
    1. \(2 \mathrm{FeCl}_{3}(\mathrm{aq})+\mathrm{SnCl}_{2}(\mathrm{aq}) \rightarrow \mathrm{SnCl}_{4}(\mathrm{aq})+2 \mathrm{FeCl}_{2}(\mathrm{aq})\)
    2. \(\mathrm{PbS}(\mathrm{s})+4 \mathrm{H}_{2} \mathrm{O}_{2}(\mathrm{aq}) \rightarrow \mathrm{PbSO}_{4}(\mathrm{aq})+4 \mathrm{H}_{2} \mathrm{O}(\mathrm{I})\)
    3. \(\mathrm{H}_{2} \mathrm{~S}(\mathrm{aq})+\mathrm{Cl}_{2} \rightarrow 2 \mathrm{HCl}(\mathrm{aq})+\mathrm{S}(\mathrm{s})\)
    4. \(\mathrm{NaCl}(\mathrm{aq})+\mathrm{AgNO}_{3}(\mathrm{aq}) \rightarrow \mathrm{AgCl}(\mathrm{s})+\mathrm{NaNO}_{3}(\mathrm{aq})\)

    Ans. \(\mathrm{NaCl}(\mathrm{aq})+\mathrm{AgNO}_{3}(\mathrm{aq}) \rightarrow \mathrm{AgCl}(\mathrm{s})+\mathrm{NaNO}_{3}(\mathrm{aq})\)

  5. āĻ…ā§āϝāĻžāϞāϕ⧋āĻšāϞ⧇āϰ āϏāĻžāĻĨ⧇ āĻ—ā§āϰāĻŋāĻ—āύāĻžāĻ°ā§āĻĄ āĻŦāĻŋāĻ•āĻžāϰāϕ⧇āϰ (RMgX) āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϝāĻŧ āĻ•āĻŋ āĻ‰ā§ŽāĻĒāĻ¨ā§āύ āĻšāϝāĻŧ-
    1. āĻ…ā§āϝāĻžāϞāĻ•āĻŋāύ
    2. āχāĻĨāĻžāϰ
    3. āĻ…ā§āϝāĻžāϞāϕ⧇āύ
    4. āĻāϏāĻŋāĻĄ

    Ans. āĻ…ā§āϝāĻžāϞāϕ⧇āύ

  6. āĻĒāϟāĻžāϏāĻŋāϝāĻŧāĻžāĻŽ āĻĒāĻžāϰāĻŽā§āϝāĻžāĻ‚āĻ—āĻžāύ⧇āϟ \(\left(\mathrm{KMnO}_{4}\right)\)-āĻ āĻŽā§āϝāĻžāĻ‚āĻ—āĻžāύāĻŋāϜ āĻāϰ āϜāĻžāϰāĻŖ āϏāĻ‚āĻ–ā§āϝāĻž āĻšāϞ-
    1. +2
    2. +5
    3. +7
    4. +6

    Ans. +7

  7. āύāĻŋāĻŽā§āύ⧇āϰ āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϰ āύāĻžāĻŽ āĻ•āĻŋ? \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{R}+\mathrm{HX} \stackrel{\text { anhydousAlCl }_{3}}{\longrightarrow} \mathrm{C}_{6} \mathrm{H}_{6}+\mathrm{RX}\)
    1. āωāĻ°ā§āϟāϜ āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻž
    2. āωāĻ°ā§āϟāϜ āĻĢāĻŋāϟāĻŋāĻ— āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻž
    3. āĻĢāĻŋāĻĄā§‡āϞ- āĻ•ā§āϰāĻžāĻ•ā§āϟ āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻž
    4. āϕ⧋āĻŦ āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻž

    Ans. āĻĢāĻŋāĻĄā§‡āϞ- āĻ•ā§āϰāĻžāĻ•ā§āϟ āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻž

  8. āĻ•āĻĒāĻžāϰ āϏāĻžāϞāĻĢ⧇āĻŸā§‡āϰ āϜāϞ⧀āϝāĻŧ āĻĻā§āϰāĻŦāϪ⧇ āĻāϏāĻŋāĻĄā§‡āϰ āωāĻĒāĻ¸ā§āĻĨāĻŋāϤāĻŋāϤ⧇ \(\mathrm{H}_{2} \mathrm{~S}\) āĻ—ā§āϝāĻžāϏ āϚāĻžāϞāύāĻž āĻ•āϰāĻž āĻšāϞ⧇ āĻ•āĻŋ āϘāϟāĻŦ⧇-
    1. āĻĻā§āϰāĻŦāĻŖāϟāĻŋ āύ⧀āϞ āĻšāϞ⧇
    2. āĻāĻ•āϟāĻŋ āĻ•āĻžāϞāĻžā§‡ āĻŦāĻ°ā§āϪ⧇āϰ āĻ…āϧāσāĻ•ā§āώ⧇āĻĒ āĻĒāĻĄāĻŧāĻŦ⧇
    3. āĻĻā§āϰāĻŦāĻŖāϟāĻŋ āĻŦāĻžāĻĻāĻžāĻŽā§€ āĻšāĻŦ⧇
    4. āĻāĻ•āϟāĻŋ āϏāĻžāĻĻāĻž āĻŦāĻ°ā§āϪ⧇āϰ āĻ…āϧāσāĻ•ā§āώ⧇āĻĒ āĻĒāĻĄāĻŧāĻŦ⧇

    Ans. āĻāĻ•āϟāĻŋ āĻ•āĻžāϞāĻžā§‡ āĻŦāĻ°ā§āϪ⧇āϰ āĻ…āϧāσāĻ•ā§āώ⧇āĻĒ āĻĒāĻĄāĻŧāĻŦ⧇

  9. \(\mathrm{C}_{6} \mathbf{H}_{5} \mathrm{OH}+\mathrm{NH}_{3} \stackrel{\mathrm{ZnCl}_{2}}{\longrightarrow}\) āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϰ āĻ•āĻŋ āĻ‰ā§ŽāĻĒāĻ¨ā§āύ āĻšāϝāĻŧ?
    1. āĻŦ⧇āύāϜāϝāĻŧāĻŋāĻ• āĻāϏāĻŋāĻĄ
    2. āύāĻžāχāĻŸā§āϰ⧋āĻŦ⧇āύāϜāĻŋāύ
    3. āĻ…ā§āϝāĻžāύāĻŋāϞāĻŋāύ
    4. āĻ•ā§āϞ⧋āϰāĻžā§‡āĻŦ⧇āύāϜāĻŋāύ

    Ans. āĻ…ā§āϝāĻžāύāĻŋāϞāĻŋāύ

  10. āϕ⧋āĻŦ āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϝāĻŧ āϕ⧋āύāϟāĻŋ āĻ‰ā§ŽāĻĒāĻ¨ā§āύ āĻšāϝāĻŧ?
    1. āĻ¸ā§āϝāĻžāϞāĻŋāϏāĻžāχāϞāĻŋāĻ• āĻāϏāĻŋāĻĄ
    2. āĻŦ⧇āύāϜāϝāĻŧāĻŋāĻ• āĻāϏāĻŋāĻĄ
    3. āĻĨā§āϝāĻžāϞāĻŋāĻ• āĻāϏāĻŋāĻĄ
    4. āĻĒāĻŋāĻ•āϰāĻŋāĻ• āĻāϏāĻŋāĻĄ

    Ans. āĻ¸ā§āϝāĻžāϞāĻŋāϏāĻžāχāϞāĻŋāĻ• āĻāϏāĻŋāĻĄ

  11. āύāĻŋāĻŽā§āύ⧇āϰ āϕ⧋āύāϟāĻŋ āĻ•āĻŋāĻŸā§‹āύ⧇āϰ āĻ•āĻžāĻ°ā§āϝāĻ•āϰ⧀ āĻŽā§‚āϞāĻ•?
    1. -OH
    2. >C=0
    3. -CHO
    4. -COOH

    Ans. >C=0

  12. āĻ•āĻ•ā§āώ āϤāĻžāĻĒāĻŽāĻžāĻ¤ā§āϰāĻžāϝāĻŧ āĻĒāĻžāύāĻŋāϰ āϏāĻžāĻĨ⧇ āĻ•ā§āϝāĻžāϞāϏāĻŋāϝāĻŧāĻžāĻŽ āĻ•āĻžāĻ°ā§āĻŦāĻžāχāĻĄā§‡āϰ āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϰ āĻĢāϞ⧇ āύāĻŋāĻšā§‡āϰ āϕ⧋āύ āϝ⧌āĻ—āϟāĻŋ āĻ‰ā§ŽāĻĒāĻ¨ā§āύ āĻšāϝāĻŧ-
    1. āχāĻĨāĻŋāϞāĻŋāύ
    2. āĻŽāĻŋāĻĨ⧇āύ
    3. āĻ…ā§āϝāĻžāϏāĻŋāϟāĻŋāϞāĻŋāύ
    4. āχāĻĨ⧇āύ

    Ans. āĻ…ā§āϝāĻžāϏāĻŋāϟāĻŋāϞāĻŋāύ

  13. 0.1 M āĻšāĻžāχāĻĄā§āϰ⧋āĻ•ā§āϞ⧋āϰāĻŋāĻ• āĻāϏāĻŋāĻĄā§‡āϰ pH āĻŽāĻžāύ āĻ•āϤ?
    1. 0.1
    2. 1.0
    3. 1.1
    4. 10.1

    Ans. 1.0

  14. āĻŦāĻžāϝāĻŧ⧁āϰ āĻ…āύ⧁āĻĒāĻ¸ā§āĻĨāĻŋāϤāĻŋāϤ⧇ āωāĻšā§āϚāϤāĻžāĻĒāĻŽāĻžāĻ¤ā§āϰāĻžāϝāĻŧ (600°C) āĻ•āĻžāĻ āϕ⧇ āĻĻāĻšāύ āĻ•āϰāϞ⧇ āύāĻŋāĻšā§‡āϰ āϕ⧋āύāϟāĻŋ āĻĒāĻžāĻ“āϝāĻŧāĻž āϝāĻžāϝāĻŧ?
    1. āϕ⧋āĻ•
    2. āĻ›āĻžāχ
    3. āĻ•āĻžāĻ āĻ•āϝāĻŧāϞāĻž
    4. āĻ—ā§āϞ⧁āϕ⧋āϜ

    Ans. āĻ•āĻžāĻ āĻ•āϝāĻŧāϞāĻž

  15. āĻ…ā§āϝāĻžāϏāĻŋāϟāĻŋāϞāĻŋāύ āϝ⧌āϗ⧇āϰ āĻāĻ•āϟāĻŋ āĻ…āϪ⧁āϰ āĻŽāĻ§ā§āϝ⧇ āĻŽāĻžā§‡āϟ āϏāĻŋāĻ—āĻŽāĻž āĻŦāĻ¨ā§āϧāύ⧇āϰ āϏāĻ‚āĻ–ā§āϝāĻž āĻšāϞ-
    1. 3
    2. 1
    3. 2
    4. 0

    Ans. 3

  16. 4.0g āĻšāĻžāχāĻĄā§āϰ⧋āĻœā§‡āύāϕ⧇ āĻ…āϤāĻŋāϰāĻŋāĻ•ā§āϤ āĻ…āĻ•ā§āϏāĻŋāĻœā§‡āύ⧇ āĻĒāĻžā§‡āĻĄāĻŧāĻžāϞ⧇ āĻ‰ā§ŽāĻĒāĻ¨ā§āύ āĻĒāĻžāύāĻŋāϰ āĻĒāϰāĻŋāĻŽāĻžāĻŖ-
    1. 16g
    2. 18g
    3. 54g
    4. 36g

    Ans. 36g

  17. āϕ⧋āύ āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϰ āĻŦ⧇āĻ— āĻ§ā§āϰ⧁āĻŦāĻ• k-āĻāϰ āĻŽāĻžāĻ¤ā§āϰāĻž āϝāĻĻāĻŋ \((\text { Time })^{-1}\) āĻšāϝāĻŧ, āϤāĻŦ⧇ āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϟāĻŋ āĻ•ā§āϰāĻŽ āĻšāĻŦ⧇-
    1. āĻĒā§āϰāĻĨāĻŽ āĻ•ā§āϰāĻŽ
    2. āĻĻā§āĻŦāĻŋāϤ⧀āϝāĻŧ āĻ•ā§āϰāĻŽ
    3. āĻļā§‚āĻ¨ā§āϝ āĻ•ā§āϰāĻŽ
    4. āϤ⧃āϤ⧀āϝāĻŧ āĻ•ā§āϰāĻŽ

    Ans. āĻĒā§āϰāĻĨāĻŽ āĻ•ā§āϰāĻŽ

  18. āύāĻŋāĻŽā§āύ⧇āϰ āϕ⧋āύ āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϟāĻŋ \(\mathbf{K}_{\mathbf{p}}=\mathbf{K}_{\mathbf{c}} ?\)
    1. \(\mathrm{PCl}_{5}(\mathrm{~g}) \rightarrow \mathrm{PCl}_{3}(\mathrm{~g})+\mathrm{Cl}_{2}(\mathrm{~g})\)
    2. \(\mathrm{N}_{2}(\mathrm{~g})+3 \mathrm{H}_{2}(\mathrm{~g}) \rightarrow 2 \mathrm{NH}_{3}(\mathrm{~g})\)
    3. \(\mathrm{N}_{2}(\mathrm{~g})+3 \mathrm{H}_{2}(\mathrm{~g}) \rightarrow 2 \mathrm{NH}_{3}(\mathrm{~g})\)
    4. \(2 \mathrm{HI}(\mathrm{g}) \rightarrow \mathrm{H}_{2}(\mathrm{~g})+\mathrm{I}_{2}(\mathrm{~g})\)

    Ans. \(2 \mathrm{HI}(\mathrm{g}) \rightarrow \mathrm{H}_{2}(\mathrm{~g})+\mathrm{I}_{2}(\mathrm{~g})\)

  19. āύāĻŋāĻšā§‡āϰ āϕ⧋āύāϟāĻŋ āĻ…ā§āϝāĻžāĻŽāĻžā§‡āύāĻŋāϝāĻŧāĻžāϰ āϏāĻžāĻĨ⧇ āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻž āĻ•āϰ⧇ āχāωāϰāĻŋāϝāĻŧāĻž āĻ‰ā§ŽāĻĒāĻžāĻĻāύ āĻ•āϰ⧇-
    1. \(\mathrm{CO}_{2}\)
    2. \(\mathrm{H}_{2} \mathrm{O}\)
    3. \(\mathrm{CH}_{4}\)
    4. \(\mathrm{C}_{6} \mathrm{H}_{6}\)

    Ans. \(\mathrm{CO}_{2}\)

  20. āϧāĻžāϤ⧁āϏāĻŽā§‚āĻšā§‡āϰ āĻŽāĻ§ā§āϝ⧇ āϕ⧋āύāϟāĻŋ āĻ­ā§‚-āĻĒ⧃āĻˇā§āϠ⧇ āϏāĻŦāĻšā§‡āϝāĻŧ⧇ āĻŦ⧇āĻļā§€ āĻĒāĻžāĻ“āϝāĻŧāĻž āϝāĻžāϝāĻŧ
    1. Iron
    2. Potassium
    3. Calcium
    4. Aluminium

    Ans. Aluminium

  21. āύāĻŋāĻŽā§āύāϞāĻŋāĻ–āĻŋāϤ āϕ⧋āύ āĻ—ā§āϰ⧁āĻĒ⧇āϰ āĻŽā§ŒāϞāĻĻā§āĻŦāϝāĻŧ āĻĒāĻŋāϰāĻŋāϝāĻŧāĻĄāĻŋāĻ• āĻŸā§‡āĻŦāĻŋāϞ⧇āϰ āĻāĻ•āχ āĻĒāĻŋāϰāĻŋāϝāĻŧāĻĄ āĻļā§āϰ⧇āĻŖā§€āϭ⧁āĻ•ā§āϤ?
    1. Na,K
    2. 0,S
    3. Ar, Kr
    4. Cu, Zn

    Ans. Cu, Zn

  22. āύāĻŋāĻšā§‡āϰ āϝ⧌āĻ—āϗ⧁āϞāĻŋāϰ āϕ⧋āύāϟāĻŋ āĻšā§‡āĻ•ā§āϏ⧇āύ⧇āϰ āϏāĻŽāĻžāϪ⧁ āύāϝāĻŧ-
    1. 2,3 dimethyl butane
    2. 2,2 dimethyl butane
    3. 2, 2 dimet hyl propane
    4. 2-methyl pentane

    Ans. 2, 2 dimet hyl propane

  23. \(\mathbf{A}+\mathbf{B} \rightarrow \mathbf{C}\) āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϟāĻŋāϰ āĻ—āϤāĻŋ āϏāĻŽā§€āĻ•āϰāĻŖ āĻšāϞāĻžā§‡ \(\mathbf{v}=\mathbf{k}[\mathbf{A}]^{2}: \mathbf{A}\) āĻāϰ āĻĒā§āϰāĻžāϰāĻŽā§āĻ­āĻŋāĻ• āϘāύāĻŽāĻžāĻ¤ā§āϰāĻž āĻĻā§āĻŦāĻŋāϗ⧁āĻŖ āĻ•āϰāĻž āĻšāϞ⧇ āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϟāĻŋāϰ āĻĒā§āϰāĻžāϰāĻŽā§āĻ­āĻŋāĻ• āĻ—āϤāĻŋ āĻ•āϤāϗ⧁āĻŖ āĻŦ⧃āĻĻā§āϧāĻŋ āĻĒāĻžāĻŦ⧇āĨ¤
    1. 2
    2. 3
    3. 4
    4. 8

    Ans. 4

  24. s āĻŦā§āϞāĻ• āĻŽā§ŒāϞ⧇āϰ āϧāĻ°ā§āĻŽ āϏāĻŽā§āĻĒāĻ°ā§āϕ⧇ āϏāĻ āĻŋāĻ• āωāĻ•ā§āϤāĻŋāϟāĻŋ āϚāĻŋāĻšā§āύāĻŋāϤ āĻ•āϰ-
    1. \(\mathrm{Mg}^{2+}\) āĻāϰ āφāϝāĻŧāύāĻŋāĻ• āĻŦā§āϝāĻžāϏāĻžāĻ°ā§āϧ \(\mathrm{Na}^{+}\) āĻ…āĻĒ⧇āĻ•ā§āώāĻž āωāĻšā§āϚāϤāϰ
    2. Na āĻāϰ āĻ—āϞāύāĻžāĻ‚āĻ• Mg āĻ…āĻĒ⧇āĻ•ā§āώāĻž āύāĻŋāĻŽā§āύāϤāϰ
    3. Na āĻāϰ āĻ—āϞāύāĻžāĻ‚āĻ• āϏāĻ°ā§āĻŦāĻĻāĻž Mg āĻ…āĻĒ⧇āĻ•ā§āώāĻž āĻ…āύ⧇āĻ• āĻŦ⧇āĻļāĻŋ
    4. K āĻāϰ āφāϝāĻŧāύ⧀āĻ•āϰāĻŖ āĻļāĻ•ā§āϤāĻŋ Na āĻ…āĻĒ⧇āĻ•ā§āώāĻž āωāĻšā§āϚāϤāϰ

    Ans. Na āĻāϰ āĻ—āϞāύāĻžāĻ‚āĻ• Mg āĻ…āĻĒ⧇āĻ•ā§āώāĻž āύāĻŋāĻŽā§āύāϤāϰ

  25. āϕ⧋āύ āϝ⧌āĻ—āϟāĻŋāϰ āφāϝāĻŧāύāĻŋāĻ• āĻŦ⧈āĻļāĻŋāĻˇā§āĻŸā§āϝ āϏāĻ°ā§āĻŦā§‹āĻšā§āϚ-
    1. \(\mathrm{AlF}_{3}\)
    2. \(\mathrm{AlCl}_{3}\)
    3. \(\mathrm{SiCl}_{4}\)
    4. \(\mathrm{SiF}_{4}\)

    Ans. \(\mathrm{AlF}_{3}\)

  26. āύāĻŋāĻŽā§āύ⧇ āĻĻ⧇āϝāĻŧāĻž āĻ…āϰāĻŦāĻŋāϟāĻžāϞāϏāĻŽā§‚āĻšā§‡āϰ āϕ⧋āύāϟāĻŋ āĻĨāĻžāĻ•āĻž āϏāĻŽā§āĻ­āĻŦ āύāϝāĻŧ?
    1. 1s
    2. 2s
    3. 2d
    4. 4d

    Ans. 2d

  27. 27°C āϤāĻžāĻĒāĻŽāĻžāĻ¤ā§āϰāĻžāϝāĻŧ 1.0 atm āϚāĻžāĻĒ⧇ ā§Ē.2 L āφāϝāĻŧāϤāύ⧇āϰ āϕ⧋āύ āĻ—ā§āϝāĻžāϏ⧇āϰ āĻ­āϰ 6.0gāĨ¤ āĻ—ā§āϝāĻžāϏāϟāĻŋāϰ āφāĻĒ⧇āĻ•ā§āώāĻŋāĻ• āĻ­āϰ āĻ•āϤ?
    1. 44
    2. 18
    3. 28
    4. 16

    Ans. 18

  28. \(\mathrm{H}_{2}+\mathrm{Cl}_{2} \rightarrow 2 \mathrm{HCl}+44 \mathrm{kcal}\) āϏāĻŽā§€āĻ•āϰāĻŖāϟāĻŋ āĻŦāĻŋāĻŦ⧇āϚāύāĻž āĻ•āϰ āύāĻŋāĻšā§‡āϰ āϕ⧋āύ āĻ•āĻžāϜāϟāĻŋ āĻāχ āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϰ āϏāĻžāĻŽā§āϝāĻžāĻŦāĻ¸ā§āĻĨāĻžāϕ⧇ āĻ‰ā§ŽāĻĒāĻžāĻĻ⧇āϰ āĻĻāĻŋāϕ⧇ āϏāϰāĻŋāϝāĻŧ⧇ āĻĻ⧇āĻŦ⧇-
    1. \(\mathrm{H}_{2}\) āϝāĻžā§‡āĻ— āĻ•āϰāĻž āĻšāϞ⧇
    2. \(\mathrm{Cl}_{2}\) āϏāϰāĻŋāϝāĻŧ⧇ āύāĻŋāϞ⧇
    3. HCl āϝāĻžā§‡āĻ— āĻ•āϰāĻž āĻšāϞ⧇
    4. āϤāĻžāĻĒāĻŽāĻžāĻ¤ā§āϰāĻž āĻŦ⧃āĻĻā§āϧāĻŋ āĻ•āϰāĻž āĻšāϞ⧇

    Ans. \(\mathrm{H}_{2}\) āϝāĻžā§‡āĻ— āĻ•āϰāĻž āĻšāϞ⧇

  29. āϕ⧋āύ āύāĻŋāĻˇā§āĻ•ā§āϰāĻŋāϝāĻŧ āĻ—ā§āϝāĻžāϏ āĻŦāĻžāϤāĻžāϏ⧇ āϏāĻŦāĻšā§‡āϝāĻŧ⧇ āĻŦ⧇āĻļāĻŋ āĻĒāϰāĻŋāĻŽāĻžāϪ⧇ āĻĨāĻžāϕ⧇?
    1. He
    2. Ne
    3. Ar
    4. Kr

    Ans. Ar

  30. āĻāĻ•āϟāĻŋ āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϰ āĻĒā§āϰāĻ­āĻžāĻŦāϕ⧇āϰ āĻĒā§āϰāĻ­āĻžāĻŦ-
    1. āϏāĻžāĻŽā§āϝāĻžāĻŦāĻ¸ā§āĻĨāĻžāϕ⧇ āĻ‰ā§ŽāĻĒāĻžāĻĻāϕ⧇āϰ āĻĻāĻŋāϕ⧇ āϏāϰāĻŋāϝāĻŧ⧇ āĻĻ⧇āĻŦ⧇
    2. āϕ⧇āĻŦāϞ āĻ…āĻ—ā§āϰāĻ—āĻžāĻŽā§€ āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϰ āĻ—āϤāĻŋ āĻŦ⧃āĻĻā§āϧāĻŋ āĻ•āϰ⧇
    3. āĻ…āĻ—ā§āϰ-āĻĒāĻļā§āϚāĻžā§Ž āωāĻ­āϝāĻŧ āĻĻāĻŋāϕ⧇ āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϰ āĻ—āϤāĻŋ āĻŦ⧃āĻĻā§āϧāĻŋ āĻ•āϰ⧇
    4. āĻĒāĻļā§āϚāĻžā§ŽāĻ—āĻžāĻŽā§€ āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϰ āĻ—āϤāĻŋ āĻŦ⧃āĻĻā§āϧāĻŋ āĻ•āϰ⧇

    Ans. āĻ…āĻ—ā§āϰ-āĻĒāĻļā§āϚāĻžā§Ž āωāĻ­āϝāĻŧ āĻĻāĻŋāϕ⧇ āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϰ āĻ—āϤāĻŋ āĻŦ⧃āĻĻā§āϧāĻŋ āĻ•āϰ⧇

Mathematics

  1. \(x^{2}+y^{2}-24 x+10 y=0\) āĻŦ⧃āĻ¤ā§āϤ⧇āϰ āĻŦā§āϝāĻžāϏāĻžāĻ°ā§āϧ-

    1. 7
    2. 5
    3. 13
    4. 12

    Ans. 13

  2. \(\tan ^{-1} 1+\tan ^{-1} 2+\tan ^{-1} 3\) āĻāϰ āĻŽāĻžāύ
    1. \(\frac{\pi}{4}\)
    2. \(\frac{\pi}{2}\)
    3. \(\pi\)
    4. \(2 \pi\)

    Ans. \(\pi\)

  3. (4, 5) āϕ⧇āĻ¨ā§āĻĻā§āϰāĻŦāĻŋāĻļāĻŋāĻˇā§āϟ āĻŦ⧃āĻ¤ā§āϤ, āϝāĻž \(x^{2}+y^{2}+4 x+6 y-12=0\) āĻŦ⧃āĻ¤ā§āϤ⧇āϰ āϕ⧇āĻ¨ā§āĻĻā§āϰ āĻĻāĻŋāϝāĻŧ⧇ āĻ—āĻŽāύ āĻ•āϰ⧇, āϤāĻžāϰ āϏāĻŽā§€āĻ•āϰāĻŖ-
    1. \(x^{2}+y^{2}-8 x+10 y+59=0\)
    2. \(x^{2}+y^{2}-8 x-10 y+59=0\)
    3. \(x^{2}+y^{2}+8 x+10 y-59=0\)
    4. \(x^{2}+y^{2}-8 x-10 y-59=0\)

    Ans. \(x^{2}+y^{2}-8 x-10 y-59=0\)

  4. \(\lim _{x \rightarrow 0} \frac{x(\cos x+\cos 2 x)}{\sin x}\)

    1. 0
    2. 2
    3. \(\pi\)
    4. \(\frac{\pi}{2}\)

    Ans. 2

  5. \(\int_{0}^{\frac{\pi}{2}} \sqrt{1+\sin \theta} d \theta\)
    1. \(\sqrt{2}\)
    2. 2
    3. 1
    4. \(\frac{1}{2}\)

    Ans. 2

  6. āϝāĻĻāĻŋ \(\left|\begin{array}{ccc}1 & 1 & 1 \\ x & a & b \\ x^{2} & a^{2} & b^{2}\end{array}\right|=0\) āĻšāϞ⧇, \(\mathbf{x}=?\)
    1. \(-a\) āĻŦāĻž, (or) \(\mathrm{b}\)
    2. a āĻŦāĻž, (or) \(\mathrm{-b}\)
    3. -a āĻŦāĻž, (or) \(\mathrm{b}\)
    4. a āĻŦāĻž, (or) \(\mathrm{b}\)

    Ans. a āĻŦāĻž, (or) \(\mathrm{b}\)

  7. \(x^{2}-3 x+5\) āĻāϰ āĻ¨ā§āϝ⧂āύāϤāĻŽ āĻŽāĻžāύ-

    1. 3
    2. 5
    3. \(\frac{15}{4}\)
    4. \(\frac{11}{4}\)

    Ans. \(\frac{11}{4}\)

  8. \(\left(x^{2}+\frac{2}{x}\right)^{6}\) āĻāϰ āϏāĻŽā§āĻĒā§āϰāϏāĻžāϰāϪ⧇ x āĻŽā§āĻ•ā§āϤ āĻĒāĻĻāϟāĻŋ-
    1. 448
    2. 120
    3. 240
    4. 3000

    Ans. 240

  9. āĻāĻ•āϟāĻŋ āϗ⧁āĻŖāĻžā§‡āĻ¤ā§āϤāϰ āĻĒā§āϰāĻ—āĻŽāύ⧇āϰ āϚāϤ⧁āĻ°ā§āĻĨ āĻĒāĻĻ 9 āĻāĻŦāĻ‚ āύāĻŦāĻŽ āĻĒāĻĻ 2187 āĻšāϞ⧇, āϏāĻžāϧāĻžāϰāĻŖ āĻ…āύ⧁āĻĒāĻžāϤ āĻ•āϤ?
    1. 7
    2. 9
    3. 3
    4. 27

    Ans. 3

  10. āϝāĻĻāĻŋ \(A=\left(\begin{array}{ll}1 & 0 \\ 0 & 5\end{array}\right)\) āĻāĻŦāĻ‚ \(B=\left(\begin{array}{ll}5 & 0 \\ 2 & 1\end{array}\right)\) āĻšāϝāĻŧ, āϤāĻ–āύ AB āĻšāϝāĻŧ āĨ¤
    1. \(\left(\begin{array}{ll}5 & 0 \\ 2 & 5\end{array}\right)\)
    2. \(\left(\begin{array}{ll}5 & 0 \\ 10 & 5\end{array}\right)\)
    3. \(\left(\begin{array}{ll}6 & 0 \\ 2 & 6\end{array}\right)\)
    4. \(\left(\begin{array}{ll}8 & 1 \\ 12 & 5\end{array}\right)\)

    Ans. \(\left(\begin{array}{ll}5 & 0 \\ 10 & 5\end{array}\right)\)

  11. (4,-2) āĻŦāĻŋāĻ¨ā§āĻĻ⧁ āĻĨ⧇āϕ⧇ 5x+12y =3 āϰ⧇āĻ–āĻžāϰ āωāĻĒāϰ āĻ…āĻ™ā§āĻ•āĻŋāϤ āϞāĻŽā§āĻŦ⧇āϰ āĻĻ⧈āĻ°ā§āĻ˜ā§āϝ-
    1. 8
    2. \(\frac{8}{9}\)
    3. \(\frac{3}{7}\)
    4. \(\frac{7}{13}\)

    Ans. \(\frac{7}{13}\)

  12. \(\int_{0}^{\frac{\pi}{2}}(1+\cos x)^{2} \sin x d x\) āĻāϰ āĻŽāĻžāύ-
    1. \(\frac{8}{7}\)
    2. \(\frac{5}{8}\)
    3. \(\frac{2}{7}\)
    4. \(\frac{7}{3}\)

    Ans. \(\frac{7}{3}\)

  13. 3, 5, 7, 8, 9 āĻ…āĻ™ā§āĻ•āϗ⧁āϞāĻžā§‡ āĻāĻ• āĻŦāĻž āĻāĻ•āĻžāϧāĻŋāĻ• āĻŦāĻžāϰ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰ⧇ 7000 āĻĨ⧇āϕ⧇ āĻŦāĻĄāĻŧ āϚāĻžāϰ āĻ…āĻ™ā§āĻ• āĻŦāĻŋāĻļāĻŋāĻˇā§āϟ āĻ•āϤāϗ⧁āϞāĻžā§‡ āϏāĻ‚āĻ–ā§āϝāĻž āĻ—āĻ āύ āĻ•āϰāĻž āϝāĻžāϝāĻŧ-
    1. 27
    2. 81
    3. 72
    4. 56

    Ans. 375

  14. āϏāϰāϞāϰ⧇āĻ–āĻž 3x + 4y – 12 = 0 āĻĻā§āĻŦāĻžāϰāĻž āĻ…āĻ•ā§āώāĻĻā§āĻŦāϝāĻŧ⧇āϰ āĻŽāĻ§ā§āϝāĻŦāĻ°ā§āϤ⧀ āĻ–āĻ¨ā§āĻĄāĻŋāϤ āĻ…āĻ‚āĻļ⧇āϰ āĻĻ⧈āĻ°ā§āĻ˜ā§āϝ-
    1. 7
    2. 5
    3. 9
    4. ā§Ē

    Ans. 5

  15. āϕ⧋āύ āĻŦāĻŋāĻ¨ā§āĻĻ⧁āϤ⧇ āĻĻ⧁āχāϟāĻŋ āĻŦāϞ 120° āϕ⧋āϪ⧇ āĻ•ā§āϰāĻŋāϝāĻŧāĻžāĻļā§€āϞāĨ¤ āĻŦ⧃āĻšāĻ¤ā§āϤāϰ āĻŦāϞāϟāĻŋāϰ āĻŽāĻžāύ 10 N āĻāĻŦāĻ‚ āϤāĻžāĻĻ⧇āϰ āϞāĻŦā§āϧāĻŋ āĻ•ā§āώ⧁āĻĻā§āϰāϤāϰ āĻŦāϞ⧇āϰ āϏāĻžāĻĨ⧇ āϏāĻŽāϕ⧋āĻŖ āĻ‰ā§ŽāĻĒāĻ¨ā§āύ āĻ•āϰāϞ⧇ āĻ•ā§āώ⧁āĻĻā§āϰāϤāϰ āĻŦāϞ⧇āϰ āĻŽāĻžāύ-
    1. 4 N
    2. 5 N
    3. 6 N
    4. 8 N

    Ans. 5 N

  16. āĻŦāĻžāĻ¸ā§āϤāĻŦ āϏāĻ‚āĻ–ā§āϝāĻžāϝāĻŧ \(|5-2 x| \geq 4\) āĻ…āϏāĻŽāϤāĻžāϟāĻŋāϰ āϏāĻŽāĻžāϧāĻžāύ-
    1. \(\frac{1}{2} \leq x \leq \frac{9}{2}\)
    2. \(x \leq \frac{1}{2}\) or, \(x \geq \frac{9}{2}\)
    3. \(x \leq \frac{1}{2}\)
    4. \(\frac{1}{2} \leq x \leq 9\) or \(x \leq \frac{29}{2}\)

    Ans. \(x \leq \frac{1}{2}\) or, \(x \geq \frac{9}{2}\)

  17. \(\left(x+y, x^{2}+y^{2}\right)=(2,4)\) āĻšāϞ⧇, \(x^{2}-y^{2}\) āĻāϰ āĻŽāĻžāύ-
    1. \(\pm 2\)
    2. \(\pm 4\)
    3. \(\pm 6\)
    4. \(\pm 8\)

    Ans. \(\pm 4\)

  18. tan75° – tan30° – tan75° x tan30° āĻāϰ āĻŽāĻžāύ-
    1. 0
    2. 1
    3. \(\frac{1}{\sqrt{2}}\)
    4. \(\frac{1}{\sqrt{3}}\)

    Ans. 1

  19. \(4\left(\sin ^{2} \theta+\cos \theta\right)=5\) āϏāĻŽā§€āĻ•āϰāϪ⧇āϰ āϏāĻžāϧāĻžāϰāĻŖ āϏāĻŽāĻžāϧāĻžāύ-
    1. \(\theta=2 \mathrm{n} \pi \pm \pi / 2\)
    2. \(\theta=2 \mathrm{n} \pi \pm \pi / 3\)
    3. \(\theta=2 \mathrm{n} \pi \pm \pi / 4\)
    4. \(\theta=2 n \pi \pm \pi / 5\)

    Ans. \(\theta=2 \mathrm{n} \pi \pm \pi / 3\)

  20. \(\tan 54^{\circ}-\tan 36^{\circ}\) āĻāϰ āĻŽāĻžāύ-
    1. \(2 \tan 18^{\circ}\)
    2. \(2 \cot 27^{\circ}\)
    3. \(-2 \tan 81^{\circ}\)
    4. \(-2 \tan 72^{\circ}\)

    Ans. \(2 \tan 18^{\circ}\)

  21. āϕ⧋āύ āĻ¤ā§āϰāĻŋāϭ⧁āĻœā§‡āϰ āĻļā§€āĻ°ā§āώāĻŦāĻŋāĻ¨ā§āĻĻ⧁āϏāĻŽā§‚āĻš (-1, – 2), (2, 5) āĻāĻŦāĻ‚ (3, 10) āĻšāϞ⧇, āϤāĻžāϰ āĻ•ā§āώ⧇āĻ¤ā§āϰāĻĢāϞ –
    1. 10 sq.units
    2. 15 sq.units
    3. 4 sq.units
    4. 18 sq.units

    Ans. 4 sq.units

  22. āϝāĻĻāĻŋ \(y=\sqrt{\cos 2 x}\) āĻšāϝāĻŧ āϤāĻŦ⧇, \(\frac{\mathbf{d} \mathbf{y}}{\mathbf{d x}}\) = āĻ•āϤ?
    1. \(\frac{-\sin 2 x}{\sqrt{\cos 2 x}}\)
    2. \(\frac{\cos 2 x}{\sqrt{\sin 2 x}}\)
    3. \(\frac{2 \sin x}{\sqrt{\tan x}}\)
    4. \(\frac{\tan 2 x}{\sqrt{\sin 2 x}}\)

    Ans. \(\frac{-\sin 2 x}{\sqrt{\cos 2 x}}\)

  23. 5x – 2y + 7 = 0 āϏāϰāϞāϰ⧇āĻ–āĻžāϰ āωāĻĒāϰ āϞāĻŽā§āĻŦ āĻāĻŦāĻ‚ (-3, 1) āĻŦāĻŋāĻ¨ā§āĻĻ⧁ āĻĻāĻŋāϝāĻŧ⧇ āĻ…āϤāĻŋāĻ•ā§āϰāĻŽ āĻ•āϰ⧇ āĻāĻŽāύ āĻāĻ•āϟāĻŋ āϏāϰāϞāϰ⧇āĻ–āĻžāϰ āϏāĻŽā§€āĻ•āϰāĻŖ-
    1. 2x + 5y + 1 = 0
    2. 2x -5y + 1 = 0
    3. 2x + 5y – 1 = 0
    4. 2x -5y – 1 = 0

    Ans. 2x + 5y + 1 = 0

  24. 5 āϜāύ āĻŦāĻŋāĻœā§āĻžāĻžāύ āĻ“ 3 āϜāύ āĻ•āϞāĻž āĻ…āύ⧁āώāĻĻ⧇āϰ āĻ›āĻžāĻ¤ā§āϰ āĻĨ⧇āϕ⧇ 4 āϜāύ⧇āϰāĨ¤ āĻāĻ•āϟāĻŋ āĻ•āĻŽāĻŋāϟāĻŋ āĻ—āĻ āύ āĻ•āϰāϤ⧇ āĻšāĻŦ⧇ āϝāĻžāϤ⧇ āĻ…āĻ¨ā§āϤāϤ āĻāĻ•āϜāύ āĻŦāĻŋāĻœā§āĻžāĻžāύ āĻ“ āĻāĻ•āϜāύ āĻ•āϞāĻž āĻ›āĻžāĻ¤ā§āϰ āĻĨāĻžāϕ⧇āĨ¤ āĻ•āϤ āĻŦāĻŋāĻ­āĻŋāĻ¨ā§āύ āĻĒā§āϰāĻ•āĻžāϰ⧇ āĻāχ āĻ•āĻŽāĻŋāϟāĻŋ āĻ—āĻ āύ āĻ•āϰāĻž āϝ⧇āϤ⧇ āĻĒāĻžāϰ⧇?
    1. 60
    2. 65
    3. 70
    4. 75

    Ans. 65

  25. \(\cos 675^{\circ}+\sin \left(-11385^{\circ}\right)\) āϏāĻŽāĻžāύ-
    1. \(\cos 675^{\circ}+\sin \left(-11385^{\circ}\right)\)
    2. \(\frac{1}{\sqrt{2}}\)
    3. \(-\sqrt{2}\)
    4. \(\sqrt{2}\)

    Ans. \(\sqrt{2}\)

  26. āύāĻŋāĻšā§‡āϰ āϕ⧋āύ āϰāĻžāĻļāĻŋāĻŽāĻžāϞāĻžāϟāĻŋ sin 3A āϕ⧇ sinA āĻŦāĻž cosA āĻāϰ āĻŦāĻšā§āĻĒāĻĻā§€āϰ⧂āĻĒ⧇ āĻĒā§āϰāĻ•āĻžāĻļ āĻ•āϰ⧇?
    1. \(3 \cos A-4 \cos ^{3} A\)
    2. \(3 \sin A-4 \sin ^{3} A\)
    3. \(4 \cos A-3 \cos ^{3} A\)
    4. \(4 \sin ^{3} A-3 \sin A\)

    Ans. \(3 \sin A-4 \sin ^{3} A\)

  27. 40 āĻšāϤ⧇ 50 āϏāĻ‚āĻ–ā§āϝāĻžāϗ⧁āϞāĻŋ āĻĨ⧇āϕ⧇ āĻĻ⧈āĻŦāϚāϝāĻŧāύ āĻĒāĻĻā§āϧāϤāĻŋāϤ⧇ āĻāĻ•āϟāĻŋ āϏāĻ‚āĻ–ā§āϝāĻž āύ⧇āĻ“āϝāĻŧāĻž āĻšāϞāĨ¤ āϏāĻ‚āĻ–ā§āϝāĻžāϟāĻŋ āĻŽā§ŒāϞāĻŋāĻ• āϏāĻ‚āĻ–ā§āϝāĻž āĻšāĻ“āϝāĻŧāĻžāϰ āϏāĻŽā§āĻ­āĻžāĻŦāύāĻž āĻ•āϤ?
    1. \(\frac{2}{11}\)
    2. \(\frac{3}{11}\)
    3. \(\frac{1}{5}\)
    4. \(\frac{3}{10}\)

    Ans. \(\frac{3}{11}\)

  28. \(\frac{\tan ^{-1} x}{1+x^{2}}\) āĻāϰ āĻāĻ•āϟāĻŋ āĻ…āύāĻŋāĻ°ā§āĻĻāĻŋāĻˇā§āϟ āϝāĻžā§‡āĻ—āϜ-
    1. \(\left(\tan ^{-1} x\right) \ln \left(1+x^{2}\right)\)
    2. \(\frac{1}{2}\left(\tan ^{-1} x\right)^{2}\)
    3. \(\left(\frac{1}{2} \tan ^{-1} x\right)^{2}\)
    4. \(\frac{1}{2} \tan ^{-1} x\)

    Ans. \(\frac{1}{2}\left(\tan ^{-1} x\right)^{2}\)

  29. āĻĻāĻļāĻŽāĻŋāĻ• āϏāĻ‚āĻ–ā§āϝāĻž 115 āϕ⧇ āĻĻā§āĻŦāĻŋāĻŽāĻŋāĻ• āĻĒāĻĻā§āϧāϤāĻŋāϤ⧇ āĻĒā§āϰāĻ•āĻžāĻļ āĻ•āϰāϞ⧇ āĻšāϝāĻŧ-
    1. 1110011
    2. 1110111
    3. 1111011
    4. 1101111

    Ans. 1110011

  30. \(1+\frac{3}{1 !}+\frac{5}{2 !}+\frac{7}{3 !}+\)—- āϧāĻžāϰāĻžāϟāĻŋāϰ āϝāĻžā§‡āĻ—āĻĢāϞ-
    1. e
    2. 2e
    3. 3e
    4. 4e

    Ans. 3e

Biology

  1. āĻ…āĻ¸ā§āĻĨāĻŋāϰ āĻŦāĻžāχāϰ⧇āϰ āφāĻŦāϰāĻŖāϕ⧇ āĻ•āĻŋ āĻŦāϞ⧇?
    1. āĻĒ⧇āϰāĻŋāĻ•āĻžāĻ°ā§āĻĄāĻŋāϝāĻŧāĻžāĻŽ
    2. āĻĒ⧇āϰāĻŋāĻ•āĻ¨ā§āĻĄā§āϰāĻŋ⧟āĻžāĻŽ
    3. āĻĒ⧇āϰāĻŋāĻ…āĻ¸ā§āϟāĻŋāϝāĻŧāĻžāĻŽ
    4. āĻĒ⧇āϰāĻŋāĻ¸ā§āĻŸā§āϰ⧋āĻŽāĻŋāϝāĻŧāĻžāĻŽ

    Ans. āĻĒ⧇āϰāĻŋāĻ…āĻ¸ā§āϟāĻŋāϝāĻŧāĻžāĻŽ

  2. āĻŦāĻžāĻ‚āϞāĻžāĻĻ⧇āĻļ āϕ⧋āύ āĻĒā§āϰāĻžāĻŖāĻŋāϭ⧌āĻ—āĻžā§‡āϞāĻŋāĻ• āĻāϞāĻžāĻ•āĻžāϰ āĻ…āĻ¨ā§āϤāĻ°ā§āĻ—āϤ?
    1. āύāĻŋāφāĻ°ā§āĻ•āϟāĻŋāĻ•
    2. āĻ“āϰāĻŋāϝāĻŧ⧇āĻ¨ā§āϟāĻžāϞ
    3. āύāĻŋāĻ“āĻŸā§āϰāĻĒāĻŋāĻ•ā§āϝāĻžāϞ
    4. āĻĒ⧇āϞ⧁āĻŋāφāĻ°ā§āĻ•āϟāĻŋāĻ•

    Ans. āĻ“āϰāĻŋāϝāĻŧ⧇āĻ¨ā§āϟāĻžāϞ

  3. DNA āĻ…āϪ⧁āϰ āϏāĻ āĻŋāĻ• āĻŽāĻĄā§‡āϞ āϤ⧈āϰāĻŋ āĻ•āϰ⧇ āĻ•āĻžāϰāĻž āύāĻžā§‡āĻŦ⧇āϞ āĻĒ⧁āϰāĻ¸ā§āĻ•āĻžāϰ āĻĒ⧇āϝāĻŧ⧇āĻ›āĻŋāϞ⧇āύ?
    1. āĻ“āϝāĻŧāĻžāϟāϏāύ, āĻ•ā§āϰāĻŋāĻ• āĻ“ āωāχāϞāĻ•āĻŋāĻ¨ā§āϏ
    2. āĻ“āϝāĻŧāĻžāϟāϏāύ āĻ“ āĻ•ā§āϰāĻŋāĻ•
    3. āĻŦā§āϰāĻžāωāύ āĻ“ āĻŽāĻŋāĻšā§‡āϞ
    4. āĻŽāĻ°ā§āĻ—āĻžāύ, āĻĄā§āϜāĻžāĻ°ā§āĻĄāĻŋāύ āĻ“ āĻĒāĻžā§‡āĻ°ā§āϟāĻžāϰ

    Ans. āĻ“āϝāĻŧāĻžāϟāϏāύ, āĻ•ā§āϰāĻŋāĻ• āĻ“ āωāχāϞāĻ•āĻŋāĻ¨ā§āϏ

  4. āφāχāϞ⧇āϟāϏ āĻ…āĻŦ āĻ˛ā§āϝāĻžāĻ™ā§āĻ—āĻžāϰāĻšā§āϝāĻžāĻ¨ā§āϏ āϕ⧋āĻĨāĻžāϝāĻŧ āĻĨāĻžāϕ⧇?
    1. āĻŦ⧃āĻ•ā§āĻ•
    2. āϝāĻ•ā§ƒā§Ž
    3. āĻĢ⧁āϏāĻĢ⧁āϏ
    4. āĻ…āĻ—ā§āĻ¨ā§āϝāĻžāĻļāϝāĻŧ

    Ans. āĻ…āĻ—ā§āĻ¨ā§āϝāĻžāĻļāϝāĻŧ

  5. āϰāĻ•ā§āϤ āϜāĻŽāĻžāĻŸā§‡āϰ āϜāĻ¨ā§āϝ āϕ⧋āύ āωāĻĒāĻžāĻĻāĻžāύāϟāĻŋāϰ āĻĒā§āϰāϝāĻŧāĻžā§‡āϜāύ āύ⧇āχ?
    1. āĻĨā§āϰāĻŽā§āĻŦāĻžā§‡āĻĒā§āϞāĻžāĻ¸ā§āϟāĻŋāύ
    2. āĻĢāĻžāχāĻŦā§āϰāĻŋāύāĻžā§‡āĻœā§‡āύ
    3. āχāύāϏ⧁āϞāĻŋāύ
    4. āĻĒā§āϰāĻžā§‡āĻŽā§āĻŦāĻŋāύ

    Ans. āχāύāϏ⧁āϞāĻŋāύ

  6. ‘āĻŽā§ŒāĻŽāĻžāĻ›āĻŋ āĻĒāĻžāϞāĻ¨â€™ āϕ⧇ āĻ•āĻŋ āĻŦāϞāĻž āĻšāϝāĻŧ?
    1. āϏ⧇āϰāĻŋāĻ•āĻžāϞāϚāĻžāϰ
    2. āĻ˛ā§āϝāĻžāĻ•āĻ•āĻžāϞāϚāĻžāϰ
    3. āĻāĻĒāĻŋāĻ•āĻžāϞāϚāĻžāϰ
    4. āĻšāĻ°ā§āϟāĻŋāĻ•āĻžāϞāϚāĻžāϰ

    Ans. āĻāĻĒāĻŋāĻ•āĻžāϞāϚāĻžāϰ

  7. āϏāĻžāĻ°ā§āĻŦāϜāύ⧀āύ āĻ—ā§āϰāĻšā§€āϤāĻžâ€™ āϰāĻ•ā§āϤāĻ—ā§āϰ⧁āĻĒ⧇āϰ āĻ•āĻŋ āύāĻžāĻŽ?
    1. ā§Ļ
    2. B
    3. AB
    4. A

    Ans. AB

  8. āĻĒā§āϰāĻžāĻŖāĻŋāϕ⧁āϞ⧇āϰ āϏāĻ°ā§āĻŦāĻŦ⧃āĻšā§Ž āϕ⧋āώ āϕ⧋āύāϟāĻŋ?
    1. āĻ¸ā§āύāĻžāϝāĻŧ⧁āϕ⧋āώ
    2. āĻĒ⧇āĻļāĻŋ āϕ⧋āώ
    3. āωāϟāĻĒāĻžāĻ–āĻŋāϰ āĻĄāĻŋāĻŽ
    4. āĻ…āĻ¸ā§āĻĨāĻŋāϕ⧋āώ

    Ans. āωāϟāĻĒāĻžāĻ–āĻŋāϰ āĻĄāĻŋāĻŽ

  9. āϕ⧋āύ āĻĒā§āϰāĻžāĻŖā§€āϤ⧇ āĻĄāĻžāϝāĻŧāĻžāĻĢā§āϰāĻžāĻŽ āĻĨāĻžāϕ⧇?
    1. āĻŽāĻžāĻ›
    2. āϏāϰ⧀āϏ⧃āĻĒ
    3. āĻĒāĻžāĻ–āĻŋ
    4. āĻ¸ā§āϤāĻ¨ā§āϝāĻĒāĻžāϝāĻŧā§€

    Ans. āĻ¸ā§āϤāĻ¨ā§āϝāĻĒāĻžāϝāĻŧā§€

  10. āĻŽāĻžāύāĻŦāĻĻ⧇āĻšā§‡āϰ āĻāĻ•āϟāĻŋ āϕ⧋āώ⧇ āĻ…āĻŸā§‹āϏāĻžā§‡āĻŽā§‡āϰ āϏāĻ‚āĻ–ā§āϝāĻž āĻ•āϤ?
    1. 22
    2. 44
    3. 46
    4. 48

    Ans. 44

  11. āύāĻŋāĻšā§‡ āωāĻ˛ā§āϞ⧇āĻ–āĻŋāϤ āϕ⧋āύ āωāĻĒāĻžāĻĻāĻžāύāϟāĻŋ āϕ⧋āώ āĻŦāĻŋāĻ­āĻžāϜāύ⧇āϰ āωāĻĻā§āĻĻā§€āĻĒāĻ•?
    1. āĻŽāĻžāχāĻŸā§‹āĻ•āĻ¨ā§āĻĄā§āϰāĻŋāϝāĻŧāĻž
    2. āϏ⧇āĻ¨ā§āĻŸā§āϰāĻŋāĻ“āϞ
    3. āĻ—āϞāĻ—āĻŋ āĻŦāĻĄāĻŋ
    4. āύāĻŋāωāĻ•ā§āϞāĻŋāϝāĻŧ āĻāĻŋāϞāĻŋ

    Ans. āϏ⧇āĻ¨ā§āĻŸā§āϰāĻŋāĻ“āϞ

  12. āĻŦāĻ‚āĻļāĻ—āϤāĻŋāĻŦāĻŋāĻĻā§āϝāĻžāϰ āϜāύāĻ• āϕ⧇?
    1. āĻĄāĻžāϰāωāχāύ
    2. āĻšā§‡āϕ⧇āϞ
    3. āĻŽā§‡āĻ¨ā§āĻĄā§‡āϞ
    4. āĻšāĻ˛ā§āĻĄā§‡āύ

    Ans. āĻŽā§‡āĻ¨ā§āĻĄā§‡āϞ

  13. āĻŽāĻžāύ⧁āώ⧇āϰ āĻ¸ā§āĻŦāĻžāĻ­āĻžāĻŦāĻŋāĻ• āϰāĻ•ā§āϤāϚāĻžāĻĒ āĻ•āϤ (āϏāĻŋāĻ¸ā§āĻŸā§‹āϞ : āĻĄāĻžāϝāĻŧāĻžāĻ¸ā§āĻŸā§‹āϞ)?
    1. 120mm:80mm
    2. 110mm:60mm
    3. 170mm:95mm
    4. 140mm:90mm

    Ans. 120mm:80mm

  14. āϚāĻŋāĻ‚āĻĄāĻŧāĻŋāϰ āĻĒāĻ°ā§āĻŦ⧇āϰ āύāĻžāĻŽ āĻ•āĻŋ?
    1. āϏāĻžāχāĻ•ā§āϞ⧋āĻ¸ā§āĻŸā§‹āĻŽāĻžāϟāĻž
    2. āĻ…āĻ¸ā§āϟāĻŋāĻ•āĻĨāĻŋāϏ
    3. āφāĻ°ā§āĻĨā§‹āĻĒāĻžā§‡āĻĄāĻž
    4. āĻŽāϞāĻžāĻ¸ā§āĻ•āĻž

    Ans. āφāĻ°ā§āĻĨā§‹āĻĒāĻžā§‡āĻĄāĻž

  15. āύāĻŋāĻšā§‡ āωāĻ˛ā§āϞāĻŋāĻ–āĻŋāϤ āϕ⧋āύ āĻĒā§āϰāĻžāĻŖā§€āϟāĻŋ āϕ⧇āĻŦāϞ āĻ“āϰāĻŋāϝāĻŧ⧇āĻ¨ā§āϟāĻžāϞ āϰāĻŋāϜāĻŋāϝāĻŧāύ⧇āĨ¤ āĻĒāĻžāĻ“āϝāĻŧāĻž āϝāĻžāϝāĻŧ?
    1. āĻĄāĻžā§‡āϰāĻž āĻŦāĻžāϘ
    2. āĻŦāύāĻŽāĻžā§‡āϰāĻ—
    3. āĻšāĻžāϤāĻŋ
    4. āĻœā§‡āĻŦā§āϰāĻž

    Ans. āĻŦāύāĻŽāĻžā§‡āϰāĻ—

  16. āĻĢāϏāĻĢā§‹āϰāĻžāχāϞ⧇āĻļāύ āĻĒā§āϰāĻ•ā§āϰāĻŋāϝāĻŧāĻž āĻ•āϝāĻŧ āĻĒā§āϰāĻ•āĻžāϰ?
    1. āĻāĻ•
    2. āĻĻ⧁āχ
    3. āϤāĻŋāύ
    4. āϚāĻžāϰ

    Ans. āϤāĻŋāύ

  17. āĻŦā§āϝāĻžāĻ•āĻŸā§‡āϰāĻŋāĻ“āĻĢāĻžāϝ āĻ•āĻŋ?
    1. āĻ­āĻžāχāϰāĻžāϏ āĻ§ā§āĻŦāĻ‚āϏāĻ•āĻžāϰ⧀ āĻŦā§āϝāĻžāĻ•āĻŸā§‡āϰāĻŋāϝāĻŧāĻž
    2. āĻŽāĻžāύāĻŦāĻĻ⧇āĻšā§‡ āĻāĻ• āϏāĻ‚āĻ•ā§āϰāĻžāĻŽāĻ• āĻ­āĻžāχāϰāĻžāϏ
    3. āĻŦā§āϝāĻžāĻ•āĻŸā§‡āϰāĻŋāϝāĻŧāĻž āĻ§ā§āĻŦāĻ‚āϏāĻ•āĻžāϰ⧀ āĻ­āĻžāχāϰāĻžāϏ
    4. āĻāĻ• āϧāϰāύ⧇āϰ HIV

    Ans. āĻŦā§āϝāĻžāĻ•āĻŸā§‡āϰāĻŋāϝāĻŧāĻž āĻ§ā§āĻŦāĻ‚āϏāĻ•āĻžāϰ⧀ āĻ­āĻžāχāϰāĻžāϏ

  18. āĻāĻ•āϟāĻŋ āωāĻĻā§āĻ­āĻŋāĻĻ āϕ⧋āώāϕ⧇ āĻĒā§āϰāĻžā§‡āĻ•ā§āϝāĻžāϰāĻŋāĻ“āϟ āĻŦāϞāĻž āĻšāϝāĻŧ āϝāĻ–āύ-
    1. āϕ⧋āώ⧇ āĻŽāĻžāχāĻŸā§‹āĻ•āĻ¨ā§āĻĄā§āϰāĻŋāϝāĻŧāĻž āĻĨāĻžāϕ⧇ āύāĻž
    2. āϏ⧁āϏāĻ‚āĻ—āĻ āĻŋāϤ āύāĻŋāωāĻ•ā§āϞāĻŋāϝāĻŧāĻžāϏ āĻ…āύ⧁āĻĒāĻ¸ā§āĻĨāĻŋāϤ āĻĨāĻžāϕ⧇
    3. āϕ⧋āώ⧇ DNA āĻĨāĻžāϕ⧇ āύāĻž
    4. āϕ⧋āώ āĻĒā§āϰāĻžā§‡āϟāĻŋāύ āĻ“ DNA āĻĻā§āĻŦāĻžāϰāĻž āĻ—āĻ āĻŋāϤ

    Ans. āϏ⧁āϏāĻ‚āĻ—āĻ āĻŋāϤ āύāĻŋāωāĻ•ā§āϞāĻŋāϝāĻŧāĻžāϏ āĻ…āύ⧁āĻĒāĻ¸ā§āĻĨāĻŋāϤ āĻĨāĻžāϕ⧇

  19. āĻ¸ā§āĻŦāϤāĻ¨ā§āĻ¤ā§āϰ āĻ¸ā§āĻŦāĻ­āĻžā§‡āĻœā§€ āϜāύ⧁āĻ•ā§āϰāĻŽ āĻĻ⧇āĻ–āĻž āϝāĻžāϝāĻŧ āϕ⧋āύ āωāĻĻā§āĻ­āĻŋāĻĻ⧇?
    1. Pteris
    2. Riccia
    3. Spirogyra
    4. Sargassum

    Ans. Pteris

  20. āϏāĻžāϞāĻžā§‡āĻ•āϏāĻ‚āĻļā§āϞ⧇āώāϪ⧇ āωāĻĻā§āĻ­ā§‚āϤ āĻ…āĻ•ā§āϏāĻŋāĻœā§‡āύ āĻāϰ āĻ‰ā§ŽāϏ āϕ⧋āύāϟāĻŋ?
    1. \(\mathrm{CO}_{2}\)
    2. \(\mathrm{H}_{2} \mathrm{O}\)
    3. āĻ¸ā§āĻŸā§āϰ⧋āĻŽāĻž
    4. āĻ—ā§āϰāĻžāύāĻž

    Ans. \(\mathrm{H}_{2} \mathrm{O}\)

  21. NADP āĻ•āĻŋ?
    1. āĻāύāϜāĻžāχāĻŽ
    2. āϕ⧋-āĻāύāϜāĻžāχāĻŽ
    3. āĻ­āĻŋāϟāĻžāĻŽāĻŋāύ
    4. āĻĢāĻžāχāĻŸā§‹āĻšāϰāĻŽāĻžā§‡āύ

    Ans. āϕ⧋-āĻāύāϜāĻžāχāĻŽ

  22. āĻšā§āϝāĻžāϚ āĻ“ āĻ¸ā§āϝāĻžāĻ• āϚāĻ•ā§āϰ⧇ \(\mathrm{C}_{4}\) āωāĻĻā§āĻ­āĻŋāĻĻ⧇ āĻĒā§āϰāĻĨāĻŽ āĻ¸ā§āĻĨāĻžāϝāĻŧā§€ āĻĒāĻĻāĻžāĻ°ā§āĻĨ āĻ•āĻŋ?
    1. āĻŽā§āϝāĻžāϞāĻŋāĻ• āĻ…ā§āϝāĻžāϏāĻŋāĻĄ
    2. āĻĒāĻžāχāϰ⧁āĻ­āĻŋāĻ• āĻ…ā§āϝāĻžāϏāĻŋāĻĄ
    3. āĻĢāϏāĻĢā§‹āĻ—ā§āϞāĻŋāϏāĻžāϰāĻŋāĻ• āĻ…ā§āϝāĻžāϏāĻŋāĻĄ
    4. āĻ…āĻ•ā§āϏāĻžāϞāĻžā§‡ āĻ…ā§āϝāĻžāϏāĻŋāϟāĻŋāĻ• āĻ…ā§āϝāĻžāϏāĻŋāĻĄ

    Ans. āĻ…āĻ•ā§āϏāĻžāϞāĻžā§‡ āĻ…ā§āϝāĻžāϏāĻŋāϟāĻŋāĻ• āĻ…ā§āϝāĻžāϏāĻŋāĻĄ

  23. āĻĒā§āϰāĻžā§‡āϟāĻŋāύ āϏāĻ‚āĻļā§āϞ⧇āώāĻŖāĻ•āĻžāϰ⧀ āĻ•ā§āώ⧁āĻĻā§āϰāĻžāĻ™ā§āϗ⧇āϰ āύāĻžāĻŽ āĻ•āĻŋ?
    1. āϞāĻžāχāϏāĻžā§‡āϏāĻžā§‡āĻŽ
    2. āĻŽāĻžāχāĻ•ā§āϰ⧋āϏāĻžā§‡āĻŽ
    3. āϰāĻžāχāĻŦāĻžā§‡āϏāĻžā§‡āĻŽ
    4. āϏ⧇āĻ¨ā§āĻŸā§āϰ⧋āϏāĻžā§‡āĻŽ

    Ans. āϰāĻžāχāĻŦāĻžā§‡āϏāĻžā§‡āĻŽ

  24. āωāĻšā§āϚ āϰāĻ•ā§āϤāϚāĻžāĻĒ āύāĻŋāϝāĻŧāĻ¨ā§āĻ¤ā§āϰāϪ⧇ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻšāϝāĻŧ āϕ⧋āύ āωāĻĻā§āĻ­āĻŋāĻĻ?
    1. āĻĒ⧁āύāĻ°ā§āĻŖāĻ­āĻž
    2. āϏāĻ°ā§āĻĒāĻ—āĻ¨ā§āϧāĻž
    3. āύāϝāĻŧāύāϤāĻžāϰāĻž
    4. āĻ•āĻžāϞāĻŽā§‡āϘ

    Ans. āϏāĻ°ā§āĻĒāĻ—āĻ¨ā§āϧāĻž

  25. āĻ­āĻžāχāϰāĻžāϏ āϝāĻž āĻĻā§āĻŦāĻžāϰāĻž āĻ—āĻ āĻŋāϤ-
    1. āĻĒā§āϰāĻžā§‡āϟāĻŋāύ āĻ“ āϚāĻ°ā§āĻŦāĻŋ
    2. āĻĒā§āϰāĻžā§‡āϟāĻŋāύ āĻ“ āĻ­āĻŋāϟāĻžāĻŽāĻŋāύ
    3. āĻĒā§āϰāĻžā§‡āϟāĻŋāύ āĻ“ āύāĻŋāωāĻ•ā§āϞāĻŋāĻ• āĻ…ā§āϝāĻžāϏāĻŋāĻĄ
    4. āϚāĻ°ā§āĻŦāĻŋ āĻ“ āύāĻŋāωāĻ•ā§āϞāĻŋāĻ• āĻ…ā§āϝāĻžāϏāĻŋāĻĄ

    Ans. āĻĒā§āϰāĻžā§‡āϟāĻŋāύ āĻ“ āύāĻŋāωāĻ•ā§āϞāĻŋāĻ• āĻ…ā§āϝāĻžāϏāĻŋāĻĄ

  26. āĻŽāĻžāϝāĻŧāĻžā§‡āϏāĻŋāϏ āĻĒā§āϰāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϰ āϕ⧋āύ āĻĒāĻ°ā§āϝāĻžāϝāĻŧ⧇ āĻ•ā§āϰ⧋āĻŽāĻžā§‡āϏāĻžā§‡āĻŽ āϏāĻ‚āĻ–ā§āϝāĻž āĻ…āĻ°ā§āϧ⧇āĻ• āĻšāϝāĻŧ?
    1. āĻŽā§‡āϟāĻžāĻĢ⧇āϜ-ā§§
    2. āĻ…ā§āϝāĻžāύāĻžāĻĢ⧇āϜ-ā§§
    3. āĻ…ā§āϝāĻžāύāĻžāĻĢ⧇āϜ-⧍
    4. āϟāĻŋāϞāĻžā§‡āĻĢ⧇āϜ-⧍

    Ans. āĻ…ā§āϝāĻžāύāĻžāĻĢ⧇āϜ-ā§§

  27. āĻĒāĻžāϤāĻžāϝāĻŧ āϤ⧈āϰāĻŋ āĻ–āĻžāĻĻā§āϝ āϝāĻžāϰ āĻŽāĻžāĻ§ā§āϝāĻŽā§‡ āĻ—āĻžāϛ⧇āϰ āϏāĻŦ āĻ…āĻ‚āĻļ⧇ āϝāĻžāϝāĻŧ-
    1. āĻ•ā§āϞ⧋āϰ⧇āύāĻ•āĻžāχāĻŽāĻž
    2. āĻĢā§āϞ⧋āϝāĻŧ⧇āĻŽ
    3. āϜāĻžāχāϞ⧇āĻŽ
    4. āϕ⧋āϞ⧇āύāĻ•āĻžāχāĻŽāĻž

    Ans. āĻĢā§āϞ⧋āϝāĻŧ⧇āĻŽ

  28. āϜāĻžāϤāĻŋāϜāύāĻŋ āĻļā§āϰ⧇āĻŖāĻŋāĻŦāĻŋāĻ¨ā§āϝāĻžāϏ⧇āϰ āĻĒā§āϰāĻŦāĻ°ā§āϤāĻ• āϕ⧇?
    1. āĻŦ⧇āĻ¨ā§āĻĨāĻžāĻŽ āĻ“ āĻšā§āĻ•āĻžāϰ
    2. āĻ•ā§āϝāĻžāϰāĻžā§‡āϞāĻžāϏ āϞāĻŋāύāĻŋāϝāĻŧāĻžāϏ
    3. āĻĨāĻŋāĻ“āĻĢā§āϰāĻžāĻ¸ā§āϟāĻžāϏ
    4. āĻāĻ™ā§āĻ—āϞāĻžāϰ āĻ“ āĻĒā§āϰāĻžāĻ¨ā§āϟāϞ

    Ans. āĻāĻ™ā§āĻ—āϞāĻžāϰ āĻ“ āĻĒā§āϰāĻžāĻ¨ā§āϟāϞ

  29. āĻ“āĻœā§‹āύ āĻ¸ā§āϤāϰ āĻ§ā§āĻŦāĻ‚āϏ⧇āϰ āϜāĻ¨ā§āϝ āĻĻāĻžāϝāĻŧā§€ āĻĒā§āϰāϧāĻžāύ āωāĻĒāĻžāĻĻāĻžāύ āĻšāĻšā§āϛ⧇-(āĻĒ⧁āϰāĻžāϤāύ āϏāĻŋāϞ⧇āĻŦāĻžāϏ)
    1. \(\mathrm{CO}_{2}\)
    2. \(\mathrm{CO}\)
    3. \(\mathrm{CFC}\)
    4. \(\mathrm{NO}_{2}\)

    Ans. \(\mathrm{CFC}\)

  30. āύāĻŋāĻšā§‡āϰ āϕ⧋āύ āĻĒā§āϰāϜāĻžāϤāĻŋ Cruciferae āĻ—āĻžā§‡āĻ¤ā§āϰ⧇āϰ āĻ…āĻ¨ā§āϤāĻ°ā§āϭ⧁āĻ•ā§āϤ?(āĻĒ⧁āϰāĻžāϤāύ āϏāĻŋāϞ⧇āĻŦāĻžāϏ)
    1. Shorea robusta
    2. Brassica napus
    3. Lablab niger
    4. Brassica napus

    Ans. Brassica napus

āĻŦāĻžāĻ‚āϞāĻž

  1. ‘āĻ āĻžāĻ¨ā§āĻĄāĻž’ āĻļāĻŦā§āĻĻāϟāĻŋ āϕ⧋āύ āĻ­āĻžāώāĻž āĻĨ⧇āϕ⧇ āĻŦāĻžāĻ‚āϞāĻž āĻ­āĻžāώāĻžāϝāĻŧ āĻāϏ⧇āϛ⧇?

    1. āĻšāĻŋāĻ¨ā§āĻĻāĻŋ
    2. āωāĻ°ā§āĻĻ⧁
    3. āĻĢāĻžāϰāϏāĻŋ
    4. āϏāĻ‚āĻ¸ā§āĻ•ā§ƒāϤ

    Ans. āĻšāĻŋāĻ¨ā§āĻĻāĻŋ

  2. āϕ⧋āύ āϰāϚāύāĻžāϟāĻŋ āĻ•āĻžāĻœā§€ āύāϜāϰ⧁āϞ āχāϏāϞāĻžāĻŽā§‡āϰ āύāϝāĻŧ?
    1. āϝ⧌āĻŦāύ⧇āϰ āĻ—āĻžāύ
    2. āĻœā§€āĻŦāύ āĻŦāĻ¨ā§āĻĻāύāĻž
    3. āĻĒ⧁āρāĻĨāĻŋāϰ āĻĒā§āϰāϤāĻžāĻĒ
    4. āĻ…āĻ—ā§āύāĻŋ-āĻŦā§€āĻŖāĻž

    Ans. āĻĒ⧁āρāĻĨāĻŋāϰ āĻĒā§āϰāϤāĻžāĻĒ

  3. āϕ⧋āύ āĻ…āĻĒāĻ­ā§āϰāĻ‚āĻļ āĻĨ⧇āϕ⧇ āĻŦāĻžāĻ‚āϞāĻž āĻ­āĻžāώāĻžāϰ āωāĻĻā§āĻ­āĻŦ āĻšāϝāĻŧ⧇āϛ⧇ āĻŦāϞ⧇ āĻĄ. āĻŽā§āĻšāĻŽā§āĻŽāĻĻ āĻļāĻšā§€āĻĻ⧁āĻ˛ā§āϞāĻžāĻš āĻŽāύ⧇ āĻ•āϰ⧇āύ?
    1. āĻ—ā§ŒāĻĄāĻŧ āĻ…āĻĒāĻ­ā§āϰāĻ‚āĻļ
    2. āĻļ⧌āϰāĻļ⧇āύ⧀ āĻ…āĻĒāĻ­ā§āϰāĻ‚āĻļ
    3. āĻŽāĻžāĻ—āϧ⧀ āĻ…āĻĒāĻ­ā§āϰāĻ‚āĻļ
    4. āĻŽāĻšāĻžāϰāĻžāĻˇā§āĻŸā§āϰ⧀ āĻ…āĻĒāĻ­ā§āϰāĻ‚āĻļ

    Ans. āĻ—ā§ŒāĻĄāĻŧ āĻ…āĻĒāĻ­ā§āϰāĻ‚āĻļ

  4. ‘āϐāĻšāĻŋāĻ•â€™ āĻāϰ āĻŦāĻŋāĻĒāϰ⧀āϤāĻžāĻ°ā§āĻĨāĻ• āĻļāĻŦā§āĻĻāϟāĻŋ āϚāĻŋāĻšā§āύāĻŋāϤ āĻ•āϰ-
    1. āϞ⧌āĻ•āĻŋāĻ•
    2. āχāĻšāϞ⧌āĻ•āĻŋāĻ•
    3. āĻĒāĻžāϰāĻ¤ā§āϰāĻŋāĻ•
    4. āĻĒāĻžāĻ°ā§āĻĨāĻŋāĻ•

    Ans. āĻĒāĻžāϰāĻ¤ā§āϰāĻŋāĻ•

  5. āϕ⧋āύ āĻŦāĻžāύāĻžāύāϟāĻŋ āĻļ⧁āĻĻā§āϧ?
    1. āĻ—āĻ¨ā§āĻĄā§āϏ
    2. āĻ—āĻŖā§āĻĄā§āώ
    3. āĻ—āĻ¨ā§āĻĄā§āώ
    4. āĻ—āĻŽā§āĻŦ⧁āĻļ

    Ans. āĻ—āĻŖā§āĻĄā§āώ

  6. ‘āĻ–āĻžāĻĻāĻŋāĻ°â€™ āĻļāĻŦā§āĻĻ⧇āϰ āĻ…āĻ°ā§āĻĨ āϕ⧀?
    1. āĻ–āϝāĻŧ⧇āϰ
    2. āφāĻŽāϞāĻ•āĻŋ
    3. āϜāĻ°ā§āĻĻāĻžāĻĒāĻžāϤāĻž
    4. āĻ–āĻžāĻĻāĻŋ āĻ•āĻžāĻĒāĻĄāĻŧ

    Ans. āĻ–āϝāĻŧ⧇āϰ

  7. ‘āĻœā§āĻžāĻžāύ’ āĻļāĻŦā§āĻĻ⧇āϰ āϝ⧁āĻ•ā§āϤāĻŦāĻ°ā§āĻŖāϟāĻŋ āϕ⧋āύ āϕ⧋āύ āĻŦāĻ°ā§āϪ⧇āϰ āĻŽāĻŋāϞāύ⧇ āĻ—āĻ āĻŋāϤ āĻšāϝāĻŧ⧇āϛ⧇?
    1. āĻž + āϜ
    2. āĻž + āĻ—
    3. āĻœā§ + āĻž
    4. āĻ— + āĻž

    Ans. āĻœā§ + āĻž

  8. āĻĒāĻžāĻŖāĻŋāύāĻŋ āĻ›āĻŋāϞ⧇āύ-
    1. āĻŽāĻšāĻžāĻ•āĻŦāĻŋ
    2. āύāĻžāĻŸā§āϝāĻ•āĻžāϰ
    3. āφāϞāĻ‚āĻ•āĻžāϰāĻŋāĻ•
    4. āĻŦ⧈āϝāĻŧāĻžāĻ•āϰāĻŖ

    Ans. āĻŦ⧈āϝāĻŧāĻžāĻ•āϰāĻŖ

  9. āĻŦ⧇āĻ—āĻŽ āϰāĻžā§‡āϕ⧇āϝāĻŧāĻžāϰ āĻŽāĻžāϰāĻž āϝāĻžāĻ“āϝāĻŧāĻžāϰ āϏāĻžāϞ āϕ⧋āύāϟāĻŋ?
    1. ⧧⧝⧍⧭
    2. ā§§ā§¯ā§Šā§Ļ
    3. ā§§ā§¯ā§Šā§¨
    4. ā§§ā§¯ā§Šā§Ē

    Ans. ā§§ā§¯ā§Šā§¨

  10. āϝāĻžā§‡āĻ—āϰ⧂āĻĸāĻŧ āĻļāĻŦā§āĻĻāϟāĻŋ āύāĻŋāĻ°ā§āĻĻ⧇āĻļ āĻ•āϰ-
    1. āϏāĻ¨ā§āĻĻ⧇āĻļ
    2. āĻĒā§āϰāĻŦā§€āĻŖ
    3. āĻ—āĻžāϝāĻŧāĻ•
    4. āĻĒāĻ™ā§āĻ•āϜ

    Ans. āĻĒāĻ™ā§āĻ•āϜ

  11. ‘āĻĒā§āϰāĻ•ā§ƒāĻˇā§āϟ’ āĻļāĻŦā§āĻĻ⧇āϰ āϝāĻĨāĻžāϝāĻĨ āωāĻšā§āϚāĻžāϰāĻŖ-
    1. āĻĒā§āϰāĻ•ā§ƒāĻˇā§āϟ
    2. āĻĒā§āϰāĻ•ā§ƒāώāĻŸā§‹
    3. āĻĒā§āϰāĻžā§‡āĻ•ā§āϟ
    4. āĻĒā§āϰāĻžā§‡āĻ•ā§ƒāĻļāĻŸā§‹

    Ans. āĻĒā§āϰāĻžā§‡āĻ•ā§ƒāĻļāĻŸā§‹

  12. ‘āĻ•āĻžāϚāĻŋ’ āϕ⧋āύ āĻ­āĻžāώāĻž āĻĨ⧇āϕ⧇ āĻŦāĻžāĻ‚āϞāĻž āĻ­āĻžāώāĻžāϝāĻŧ āĻāϏ⧇āϛ⧇?
    1. āϤ⧁āĻ°ā§āĻ•āĻŋ
    2. āĻĢāĻžāϰāϏāĻŋ
    3. āĻĒāĻ°ā§āϤ⧁āĻ—āĻŋāϜ
    4. āĻŦāĻžāĻ‚āϞāĻž

    Ans. āϤ⧁āĻ°ā§āĻ•āĻŋ

  13. ‘āĻĒā§āϰāĻžāϏāĻ™ā§āĻ—āĻŋāĻ•â€™ āĻļāĻŦā§āĻĻāϟāĻŋ āϕ⧋āύ āĻĒāĻĻ?
    1. āĻŦāĻŋāĻļ⧇āĻˇā§āϝ
    2. āĻŦāĻŋāĻļ⧇āώāĻŖ
    3. āĻ…āĻŦā§āϝāϝāĻŧ
    4. āĻŦāĻŋāĻļ⧇āĻˇā§āϝ⧇āϰ āĻŦāĻŋāĻļ⧇āώāĻŖ

    Ans. āĻŦāĻŋāĻļ⧇āώāĻŖ

  14. ‘āĻĒā§āϰāϏāĻ¨ā§āύ’ āĻļāĻŦā§āĻĻ āϕ⧀āĻ­āĻžāĻŦ⧇ āĻ—āĻ āĻŋāϤ?
    1. āωāĻĒāϏāĻ°ā§āĻ— āϏāĻšāϝāĻžāϗ⧇
    2. āĻ…āύ⧁āϏāĻ°ā§āĻ— āϏāĻšāϝāĻžāϗ⧇
    3. āϏāĻ¨ā§āϧāĻŋāϰ āĻĻā§āĻŦāĻžāϰāĻž
    4. āϏāĻŽāĻžāϏ⧇āϰ āϏāĻžāĻšāĻžāĻ¯ā§āϝ⧇

    Ans. āωāĻĒāϏāĻ°ā§āĻ— āϏāĻšāϝāĻžāϗ⧇

  15. ‘āĻ—āĻžāϞāĻŋāϚāĻž’ āĻļāĻŦā§āĻĻ⧇āϰ āφāĻ­āĻŋāϧāĻžāύāĻŋāĻ• āĻ…āĻ°ā§āĻĨ: –
    1. āϏāĻžāĻŽāĻŋāϝāĻŧāĻžāύāĻž
    2. āĻļāϤāϰāĻžā§āϜāĻŋ
    3. āĻ•āĻžāĻ°ā§āĻĒ⧇āϟ
    4. āĻ•āĻŽā§āĻŦāϞ

    Ans. āĻ•āĻžāĻ°ā§āĻĒ⧇āϟ

  16. ‘Amplitude’ āĻļāĻŦā§āĻĻ⧇āϰ āĻŦāĻžāĻ‚āϞāĻžāϝāĻŧ āĻĒāϰāĻŋāĻ­āĻžāώāĻž āϕ⧋āύāϟāĻŋ?
    1. āĻŦāĻŋāĻ¸ā§āϤ⧃āϤ
    2. āĻŦāĻŋāĻ¸ā§āϤāĻžāϰ
    3. āĻĒā§āϰāϏāĻžāϰāĻŋāϤ
    4. āĻŦāĻ°ā§āϧāĻŋāϤ

    Ans. āĻŦāĻŋāĻ¸ā§āϤāĻžāϰ

  17. ‘āĻŦāĻžāϞāĻŋāϰ āĻŦāĻžāρāĻ§â€™ āĻŦāĻžāĻ—āϧāĻžāϰāĻžāϰ āĻĒā§āϰāĻ•ā§ƒāϤ āĻ…āĻ°ā§āĻĨ āϕ⧋āύāϟāĻŋ?
    1. āĻŦāĻžāϞāĻŋ āĻĻā§āĻŦāĻžāϰāĻž āύāĻŋāĻ°ā§āĻŽāĻŋāϤ āĻŦāĻžāρāϧ
    2. āĻ•ā§āώāĻŖāĻ¸ā§āĻĨāĻžāϝāĻŧā§€ āĻŦāĻ¸ā§āϤ⧁
    3. āϖ⧇āϞāύāĻž
    4. āĻĒā§āϰāϤāĻŋāĻŦāĻ¨ā§āϧāĻ•

    Ans. āĻ•ā§āώāĻŖāĻ¸ā§āĻĨāĻžāϝāĻŧā§€ āĻŦāĻ¸ā§āϤ⧁

  18. ‘āĻĒ⧁āĻˇā§āĻĒāĻžāĻžā§āϜāϞāĻŋ’ āĻļāĻŦā§āĻĻāϟāĻŋ āĻ•āĻŋāĻ­āĻžāĻŦ⧇ āĻ—āĻ āĻŋāϤ?
    1. āĻĒā§āϰāĻ¤ā§āϝāϝāĻŧāϝāĻžāϗ⧇
    2. āϏāĻ¨ā§āϧāĻŋāϝāĻžāϗ⧇
    3. āωāĻĒāϏāĻ°ā§āĻ—āϝāĻžāϗ⧇
    4. āϏāĻŽāĻžāϏāϝāĻžāϗ⧇

    Ans. āϏāĻŽāĻžāϏāϝāĻžāϗ⧇

  19. āϤ⧁āĻŽāĻŋ āĻ•āĻŋāĻ¨ā§āϤ⧁ āύāĻž āĻŦāϞ āύāĻžāĨ¤ āĻŦāĻžāĻ•ā§āϝ⧇ āĻ•āĻŋāĻ¨ā§āϤ⧁ āĻāϰ āĻŦā§āϝāĻŦāĻšāĻžāϰ
    1. āύāĻŋāĻļā§āϚāϝāĻŧāϤāĻžāϏ⧂āϚāĻ•
    2. āϏāĻ‚āĻļāϝāĻŧāϏ⧂āϚāĻ•
    3. āĻ…āϞāĻ‚āĻ•āĻžāϰāĻŦāĻžāϚāĻ•
    4. āĻĒāĻĻāĻĒā§‚āϰāĻŖāĻŦāĻžāϚāĻ•

    Ans. āĻ…āϞāĻ‚āĻ•āĻžāϰāĻŦāĻžāϚāĻ•

  20. ‘āĻŦāĻŋāϞāĻžāĻ¸ā§€â€™ āĻ—āĻ˛ā§āĻĒ⧇ āϏāĻžāĻĒ āϧāϰāĻžāϰ āĻŦāĻžāϝāĻŧāύāĻž āĻāϞ⧇ āĻŦāĻŋāϞāĻžāϏ⧀ āϕ⧀ āĻ•āϰāϤ⧇āύ?(āĻĒ⧁āϰāĻžāϤāύ āϏāĻŋāϞ⧇āĻŦāĻžāϏ)
    1. āϖ⧁āĻļāĻŋ āĻšāϤ⧇āύ
    2. āĻ‰ā§ŽāϏāĻžāĻšāĻŋāϤ āĻšāϤ⧇āύ
    3. āĻŦāĻžāϧāĻž āĻĻāĻŋāϤ⧇āύ
    4. āĻĒāĻŋāϤāĻžāϕ⧇ āĻĄā§‡āϕ⧇ āφāύāϤ⧇āύ

    Ans. āĻŦāĻžāϧāĻž āĻĻāĻŋāϤ⧇āύ

  21. ‘āĻāϕ⧁āĻļ⧇āϰ āĻ—āĻ˛ā§āĻĒ’ āĻ›āĻžā§‡āϟāĻ—āĻ˛ā§āĻĒ⧇ āĻŦā§āϝāĻŦāĻšā§ƒāϤ ‘skull” āĻļāĻŦā§āĻĻ⧇āϰ āĻ…āĻ°ā§āĻĨ āϕ⧀?(āĻĒ⧁āϰāĻžāϤāύ āϏāĻŋāϞ⧇āĻŦāĻžāϏ)
    1. āĻ…āĻ™ā§āĻ— āĻŦā§āϝāĻŦāĻšā§āϛ⧇āĻĻ āĻŦāĻŋāĻĻā§āϝāĻž
    2. āĻ•āĻ‚āĻ•āĻžāϞ
    3. āĻŽāĻžāĻĨāĻžāϰ āϖ⧁āϞāĻŋ
    4. āĻŽāĻ—āϜ

    Ans. āĻŽāĻžāĻĨāĻžāϰ āϖ⧁āϞāĻŋ

  22. āĻ•āĻžāĻ—āϜ āϤāĻžā§‡ āĻĻ⧁āϰ⧇āĻ“ āφāύāϤ⧇ āĻĒāĻžāϰ⧇āĨ¤ āĻŦāĻŋāϞāĻžāϏ⧀ āĻ—āĻ˛ā§āĻĒ⧇ āĻ āωāĻ•ā§āϤāĻŋ āĻ•āĻžāϰ?(āĻĒ⧁āϰāĻžāϤāύ āϏāĻŋāϞ⧇āĻŦāĻžāϏ)
    1. āĻŦāĻŋāϞāĻžāϏ⧀āϰ
    2. āĻŽā§ƒāĻ¤ā§āϝ⧁āĻžā§āϜāϝāĻŧ⧇āϰ
    3. āϖ⧁āĻĄāĻŧāĻžāϰ
    4. āĻŽā§ƒāĻ¤ā§āϝ⧁āĻžā§āϜāϝāĻŧ⧇āϰ āĻŦāĻ¨ā§āϧ⧁āϰ

    Ans. āĻŽā§ƒāĻ¤ā§āϝ⧁āĻžā§āϜāϝāĻŧ⧇āϰ

  23. āĻ¸ā§āĻŦāĻšā§āĻ› āύ⧀āϞāĻžāĻ­ āĻŽāĻŖāĻŋāϰ āĻŽāϤāĻžā§‡ āĻ•āĻžāϰ āĻšā§‹āĻ–?(āĻĒ⧁āϰāĻžāϤāύ āϏāĻŋāϞ⧇āĻŦāĻžāϏ)
    1. āĻ•āĻĒāĻŋāϞāĻžāϰ
    2. āĻŽāĻžāϞāĻžāϰ
    3. āĻŽāĻžāϛ⧇āϰ
    4. āχāϞāĻŋāĻļ āĻŽāĻžāϛ⧇āϰ

    Ans. āχāϞāĻŋāĻļ āĻŽāĻžāϛ⧇āϰ

  24. āĻ­āĻžāĻ¸ā§āĻ•āϰ āϰāĻžā§‡-āϰ āωāĻ˛ā§āϞ⧇āĻ– āϕ⧋āύ āĻĒā§āϰāĻŦāĻ¨ā§āϧ⧇ āφāϛ⧇?(āĻĒ⧁āϰāĻžāϤāύ āϏāĻŋāϞ⧇āĻŦāĻžāϏ)
    1. āĻ­āĻžāώāĻžāϰ āĻ•āĻĨāĻž
    2. āϏāĻžāĻšāĻŋāĻ¤ā§āϝ⧇ āϖ⧇āϞāĻž
    3. āĻŦāχ āĻĒāĻĄāĻŧāĻž
    4. āϝ⧌āĻŦāύ⧇āϰ āĻ—āĻžāύ

    Ans. āϏāĻžāĻšāĻŋāĻ¤ā§āϝ⧇ āϖ⧇āϞāĻž

  25. āωāĻ˛ā§āĻ•āĻžāϰ āĻŽāϤ āϘ⧁āϰāĻŋāϛ⧇ āϧāϰāĻŖā§€ āĻļā§‚āĻ¨ā§āϝ⧇ āĻ…āĻŽāĻŋāϤ āĻŦ⧇āϗ⧇! āĻ āĻĒāĻ™āĻ•ā§āϤāĻŋ āϕ⧋āύ āĻ•āĻŦāĻŋāϤāĻžāϰ āĻ…āĻ¨ā§āϤāĻ°ā§āĻ—āϤ?(āĻĒ⧁āϰāĻžāϤāύ āϏāĻŋāϞ⧇āĻŦāĻžāϏ)
    1. āĻŦāĻ™ā§āĻ—āĻ­āĻžāώāĻž
    2. āĻœā§€āĻŦāύ-āĻŦāĻ¨ā§āĻĻāύāĻž
    3. āĻŦāĻžāĻ‚āϞāĻžāĻĻ⧇āĻļ
    4. āϤāĻžāĻšāĻžāϰ⧇āχ āĻĒāĻĄāĻŧ⧇ āĻŽāύ⧇

    Ans. āĻœā§€āĻŦāύ-āĻŦāĻ¨ā§āĻĻāύāĻž

  26. āϏāĻžāĻšāĻŋāĻ¤ā§āϝ āϛ⧇āϞ⧇āϰ āĻšāĻžāϤ⧇āϰ āϖ⧇āϞāύāĻžāĻ“ āύāϝāĻŧ āϗ⧁āϰ⧁āϰ āĻšāĻžāϤ⧇āϰ āĻŦ⧇āϤāĻ“ āύāϝāĻŧāĨ¤ āĻ āĻ…āĻ‚āĻļāϟāĻŋ āϕ⧋āύ āϰāϚāύāĻžāϰ āĻ…āĻ¨ā§āϤāĻ°ā§āĻ—āϤ?(āĻĒ⧁āϰāĻžāϤāύ āϏāĻŋāϞ⧇āĻŦāĻžāϏ)
    1. āĻ…āĻ°ā§āϧāĻžāĻ™ā§āĻ—ā§€
    2. āϝ⧌āĻŦāύ⧇āϰ āĻ—āĻžāύ
    3. āĻ­āĻžāώāĻžāϰ āĻ•āĻĨāĻž
    4. āϏāĻžāĻšāĻŋāĻ¤ā§āϝ⧇ āϖ⧇āϞāĻž

    Ans. āϏāĻžāĻšāĻŋāĻ¤ā§āϝ⧇ āϖ⧇āϞāĻž

  27. āϝāĻž āĻ—āϰāĻŽ āϏāĻ°ā§āĻĻāĻŋāĻ—āĻ°ā§āĻŽāĻŋ āĻšāϝāĻŧ⧇ āĻŽāϰāĻŦāĻžā§‡, āϚāϞāĻžā§‡ āĻŦāĻžāĻĄāĻŧāĻŋ āϝāĻžāχāĨ¤’ āĻ āωāĻ•ā§āϤāĻŋāϟāĻŋ āϕ⧇ āĻ•āϰ⧇āĻ›āĻŋāϞ?(āĻĒ⧁āϰāĻžāϤāύ āϏāĻŋāϞ⧇āĻŦāĻžāϏ)
    1. āύāĻžāϏāĻŋāϰ
    2. āϜāĻ—āĻĻā§€āĻļ
    3. āϏ⧌āĻĻāĻžāĻŽāĻŋāύ⧀
    4. āĻŦā§āϰāĻžāĻĻāĻžāϰ āϜāύ

    Ans. āύāĻžāϏāĻŋāϰ

  28. āϤāĻžā§‡āĻŽāĻžāϰ āφāĻŽāĻžāϰ āϘāϰ āύāĻžāχ, āϤāĻžāϰ āφāĻŦāĻžāϰ āĻŽāĻžāύ⧁āώāĨ¤ āϤāĻŋāϤāĻžāϏ āĻāĻ•āϟāĻŋ āύāĻĻā§€āϰ āύāĻžāĻŽ’ āωāĻĒāĻ¨ā§āϝāĻžāϏ⧇ āωāĻ•ā§āϤāĻŋāϟāĻŋ āĻ•āĻžāϰ?(āĻĒ⧁āϰāĻžāϤāύ āϏāĻŋāϞ⧇āĻŦāĻžāϏ)
    1. āĻŦāĻ¨ā§āĻĻ⧇ āφāϞ⧀
    2. āĻ•āϰāĻŽāĻžāϞ⧀
    3. āĻ•āĻŋāĻļāĻžā§‡āϰ
    4. āϤāĻŋāϞāĻ•

    Ans. āĻ•āϰāĻŽāĻžāϞ⧀

  29. ‘āĻšā§ˆāĻŽāĻ¨ā§āĻ¤ā§€â€™ āĻ—āĻ˛ā§āĻĒ⧇ āωāĻ˛ā§āϞ⧇āĻ–āĻ•ā§ƒāϤ āĻŽāĻžāĻ°ā§āϟāĻŋāύāύāĻž āϕ⧇?(āĻĒ⧁āϰāĻžāϤāύ āϏāĻŋāϞ⧇āĻŦāĻžāϏ)
    1. āĻāĻ•āϜāύ āĻĢāϰāĻžāϏāĻŋ āĻĻāĻžāĻ°ā§āĻļāύāĻŋāĻ•
    2. āϜāĻžāĻ°ā§āĻŽāĻžāύ āϰāĻžāϜāύ⧀āϤāĻŋāĻŦāĻŋāĻĻ
    3. āχāĻ‚āϰ⧇āϜ āĻ•āĻŦāĻŋ
    4. āχāĻ‚āϰ⧇āϜ āϞ⧇āĻ–āĻ•

    Ans. āχāĻ‚āϰ⧇āϜ āϞ⧇āĻ–āĻ•

  30. ‘āĻšā§ˆāĻŽāĻ¨ā§āĻ¤ā§€â€™ āĻ—āĻ˛ā§āĻĒ⧇āϰ āĻŽā§‚āϞāϏ⧁āϰ āϕ⧀?(āĻĒ⧁āϰāĻžāϤāύ āϏāĻŋāϞ⧇āĻŦāĻžāϏ)
    1. āĻŦāĻžāĻ˛ā§āϝ āĻŦāĻŋāĻŦāĻžāĻšā§‡āϰ āϕ⧁āĻĢāϞ
    2. āϝ⧌āϤ⧁āĻ• āĻĒā§āϰāĻĨāĻžāϰ āϕ⧁āĻĢāϞ
    3. āϝ⧌āĻĨ āĻĒāϰāĻŋāĻŦāĻžāϰ⧇āϰ āϏāĻ‚āĻ•āϟ
    4. āύāĻ—āϰāĻœā§€āĻŦāύ⧇āϰāϏāĻ‚āĻ•āϟ

    Ans. āϝ⧌āϤ⧁āĻ• āĻĒā§āϰāĻĨāĻžāϰ āϕ⧁āĻĢāϞ

English

.
Read the passage and answer the Q. (01-05)
Learning a second language extends one’s vision and expands the mind. Looking at he would oneself through of one’s perception and adds new dimensions to familiar objects or events. A second language teaches us different ways of labelling and organizing our experiences. The history and literature of a second language record the real and fictional lives of a people and their culture ; a knowledge of them adds to our
ability to understand and feel as they feel.

  1. An antonym for ‘familiar’ is —

    1. similar
    2. strange
    3. formal
    4. unfriendly

    Ans. strange

  2. The word ‘fictional’ is –
    1. noun
    2. verb
    3. adverb
    4. adjective

    Ans. adjective

  3. A synonym for ‘expands’ is —
    1. broadens
    2. uses
    3. relaxes
    4. reveals

    Ans. broadens

  4. Which sentence is true?
    1. The writer recommends learning a second language
    2. The writer not think a second language can be learnt
    3. The writer thinks a second language helps us organize fictional lives of a people
    4. The writer thinks learning a second language is superior to learning one’s first language

    Ans. The writer recommends learning a second language

  5. Complete the following sentence : The writer suggests that-
    1. a second language can help us to label products for other people
    2. a second language can help us to read the literature of other people
    3. a second language can help us to read the literature of other people
    4. a second language can help us to learn about other people

    Ans. a second language can help us to learn about other people

  6. choose the pair that is out of place:Q.6-08

    1. assist/abet
    2. hate/abhor
    3. native/immigrant
    4. sharp/acute

    Ans. native/immigrant

  7. choose the pair that is out of place:
    1. relinquish/abandon
    2. humiliate/disgrace
    3. degrade/disturb
    4. reject/cancel

    Ans. degrade/disturb

  8. choose the pair that is out of place:
    1. consent/agree
    2. retard/hasten
    3. unclear/obscure
    4. remote/distant

    Ans. retard/hasten

  9. Choose the appropriate verb form: Q. 09-12

  10. Don’t _____ mountains of mole hills.

    1. made
    2. make
    3. having make
    4. making

    Ans. make

  11. Do you _____ the bell ringing?
    1. hear
    2. can hear
    3. hearing
    4. heard

    Ans. hear

  12. Monir _____ Yashmin because she is kind to him.
    1. has liked
    2. likes
    3. liking
    4. had liked

    Ans. likes

  13. The rain paused and the birds _____ to sing.
    1. begin
    2. are beginning
    3. have begun
    4. began

    Ans. began

  14. Choose the most appropriate : questions 13-14

  15. They arrange to meet _____ seven.
    1. in
    2. on
    3. out
    4. at

    Ans. at

  16. We walked _____ the end of the road.
    1. to
    2. in
    3. on
    4. at

    Ans. at

  17. What do these idioms mean? Q 15-18

  18. He was always pulling my legs.
    1. He was always physically aggressive
    2. He was always trying to stretch me
    3. He was always trying to make fun of me
    4. He was trying to make me stand up.

    Ans. He was always trying to make fun of me

  19. Have you taken leave of your senses?
    1. Have you decide to act sensibly?
    2. Have you decide to be sensitive?
    3. Have you become mad?
    4. Have you become carefree?

    Ans. Have you become mad?

  20. I do not believe in an eye for an eye.
    1. I do not believe in exchanging glances
    2. I do not believe what see
    3. I do not believe in equal exchange
    4. I do not believe in punishment equal

    Ans. I do not believe in punishment equal

  21. Working long hours is part and parcel of being a journalist.
    1. Journalists regularly work long hours
    2. Journalists regularly keep an eye on the clock
    3. Journalists divide their work carefully.
    4. Journalists work diligently forever.

    Ans. Journalists regularly work long hours

  22. Bangladesh is overpopulated . Here the underlined word means-
    1. too many people
    2. people wider trees and on the train roofs
    3. more people in cities
    4. overcrowded trains and buses

    Ans. overcrowded trains and buses

  23. In 2020, the population of Bangladesh projected to be 210 million.
    1. undated
    2. estimated
    3. devoted
    4. crowded

    Ans. estimated

  24. I ____ a crime-thriller now.
    1. read
    2. was reading
    3. had read
    4. am reading

    Ans. am reading

  25. Many people were returning home with their shopping in bags and baskets. Here the underlined word refers to
    1. going shopping
    2. buying things
    3. things bought
    4. shopping centers

    Ans. things bought

  26. The population density of Bangladesh refers to_____
    1. The number of people living in the country
    2. many people living with little space between them
    3. how thickly or thinly the country is populated
    4. the birth rate of Bangladesh is projected

    Ans. how thickly or thinly the country is populated

  27. This book _____ to my uncle.
    1. belonging
    2. belongs
    3. was belonging
    4. is belonging

    Ans. belongs

  28. I _____ television everyday.
    1. watches
    2. am watching
    3. watch
    4. am watch

    Ans. watch

  29. Layla _____ to school everyday.
    1. is not going
    2. is not go
    3. not going
    4. not to go

    Ans. is not going

  30. Which word has been spelled correctly?
    1. niece
    2. neece
    3. neice
    4. nece

    Ans. niece

  31. Which sentence is correct?
    1. We’ll never see them again
    2. Never we’ll see them again
    3. We’ll see them again never
    4. We’ll see never them again

    Ans. We’ll never see them again

  32. The correct plural of ‘advice’ is _____
    1. advice
    2. many advices
    3. no plural
    4. much

    Ans. no plural

  33. Complete the sentence with the most appropriate word/ phrase: I _____ at six o’clock.
    1. get
    2. get up
    3. getting
    4. to get up

    Ans. get up

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