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 : 11

Voice of your friend can be recognized by its

a) intensity

b) pitch

c) quality

d) velocity

Answer: (c)

Question : 12

Yellow colour light is used as fog light because yellow colour

a) has the longest wavelength among all colours except red and orange but the red colour is already used for brake light and stop light whereas orange colour is avoided due to its similarity with red

b) light is most scattered by fog

c) has the longest wavelength among all colours

d) has the shortest wavelength among all colours

Answer: (a)

Yellow colour is used as fog light because of its longest wavelength it 63.33 penetrates well through dense fog.

Question : 13 [IAS (Pre) 2000]

When a CD (Compact disc used in audio and video systems) is seen in Sunlight, rainbow-like colours is seen. This can be explained on the basis of the phenomenon of

a) Diffraction and transmission

b) Reflection and transmission

c) Reflection and diffraction

d) Refraction, diffraction and transmission

Answer: (c)

Question : 14 [RAS/RTS (Pre) 1999]

The technique to integrate and mark the image of a three dimensional object is

a) Photography

b) Lexieography

c) Audiography

d) Holography

Answer: (d)

Question : 15 [MPPCS (Pre) 2017]

Lightning can even burn a tree because it contains tremendous amount of

a) Electric energy

b) Chemical energy

c) Heat energy

d) Nuclear energy

Answer: (a)

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