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 : 26 [RAS/RTS (Pre) 2007]

When a piece of ice floating in a glass of water melts, the level of water will

a) Rise

b) Remain same

c) Fall

d) Fall or rise depends on the temperature of water

Answer: (b)

Question : 27 [PSC (Pre) 2015]

The walls of the ball, built for music concerts should

a) Transmit sound

b) Reflect sound

c) Amplify sound

d) Absorb sound

Answer: (d)

Question : 28 [NDA]

Consider the following parts of spectra

  1. Visible
  2. Infrared
  3. Ultraviolet
  4. Microwave
Which one of the following is the correct sequence in which their wavelengths increase ?

a) 4 – 1 – 2 – 3

b) 4 – 3 – 1 – 2

c) 3 – 2 – 1 – 4

d) 3 – 1 – 2 – 4

Answer: (d)

Question : 29 [RAS/RTS (Pre) 2003]

When beams of red, blue and green lights fall on the same spot, the colour of the light becomes

a) Yellow

b) Red

c) Violet

d) White

Answer: (d)

Question : 30 [NDA]

Which of the following properties are most desirable for a cooking pot ?

a) Low specific heat capacity and high conductivity

b) High specific heat capacity and low conductivity

c) High specific heat capacity and high conductivity

d) Low specific heat capacity and low conductivity

Answer: (a)

IMPORTANT general science mcq EXERCISES

set 15 Online Quiz

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1653 heat wave motion sound optics oscillations based general science mcq set 15 question answer pdf
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