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 : 21 [RAS/RTS (Pre) 2012]

The cooling by a desert cooler is based on

a) Air dehydration

b) Evaporative cooling

c) Hot air replacement

d) Air rehydration

Answer: (b)

Question : 22 [UPPCS (Mains) 2012]

Which one of the following colours is seen in the middle of a Rainbow?

a) Red

b) Green

c) Blue

d) Yellow

Answer: (b)

Question : 23 [UPPSC (RI) 2014]

Velocity of light is maximum in

a) Vacuum

b) Water

c) Diamond

d) Hydrogen

Answer: (a)

Question : 24 [IAS Prelim]

Low temperatures (cryogenics) find application in :

a) surgery, magnetic levitation and telemetry

b) space travel, surgery and magnetic levitation

c) space travel, surgery and telemetry

d) space travel, magnetic levitation and telemetry

Answer: (b)

Question : 25 [UPPCS (Pre) 1992]

The Sun appears red during Sunset

a) Refraction of light

b) Scattering of light

c) Reflection of light

d) Diffraction of light

Answer: (b)

IMPORTANT general science mcq EXERCISES

set 2 Online Quiz

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1640 light thermodynamics sound optics and oscillations based general science mcq set 2 question answer pdf
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