light, heat, thermodynamics, wave motion, sound, optics & oscillations - Category wise Question and Answer Practice Test with Solutions

light, heat, thermodynamics, wave motion, sound, optics & oscillations PRACTICE TEST [16 - EXERCISES]

set 1

set 2

set 3

set 4

set 5

set 6

set 7

set 8

set 9

set 10

set 11

set 12

set 13

set 14

set 15

set 16

Question : 16 [IAS (Pre) 2013]

Fruit stored in a cold chamber exhibit longer storage life because

a) Concentration of carbon dioxide in environment is increases

b) Rate of respiration is decreased

c) Exposure to Sunlight is prevented

d) There is increase in humidity

Answer: (b)

Question : 17 [PSC (Pre) 2019]

Which type of image of an object is formed by eye lens of the retina?

a) Inverted and Real

b) Erect and Virtual

c) Erect and Real

d) Inverted and Virtual

Answer: (a)

Question : 18 [IAS (Pre) 2000]

For reproducing sound, a CD (Compact Disc) audio player uses a

a) Laser beam

b) Titanium needle

c) Quartz crystal

d) Barium titanic ceramic

Answer: (a)

Question : 19 [PSC (Pre) 2019]

When we see the sky from a plane in high altitude, then it seems

a) White

b) Black

c) Blue

d) Red

Answer: (b)

Question : 20 [UPPCS (Mains) 2015]

At what temperature are the reading of a Centigrade and Fahrenheit thermometer the same?

a) 212°

b) 40°

c) – 40°

d) 100°

Answer: (c)

IMPORTANT general science mcq EXERCISES

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1643 light thermodynamics sound optics and oscillations based general science mcq set 5 question answer pdf
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