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 : 6 [NDA]

Which one among the following statements about thermal conductivity is correct ?

a) Steel > Water > Wood

b) Steel > Wood > Water

c) Water > Steel > Wood

d) Water > Wood > Steel

Answer: (a)

Question : 7 [UPPCS (Pre) 1993]

Thermostat is related to

a) Temperature

b) Air

c) Humidity

d) Clouds

Answer: (a)

Question : 8 [PCS (Pre) 2016]

Which of the following is a mechanical wave?

a) Light waves

b) X-rays

c) Radio waves

d) Sound waves

Answer: (d)

Question : 9 [UPRO/ARO (Pre) 2016]

Consider the following statements.
Assertion (A):
Light coloured clothes are preferred in summer.
Reason (R):
Light colours are poor absorbers of heat.
Select correct answer from the code given below.

a) Both (A) and (R) are true, but (R) is not the correct explanation of (A)

b) (A) is true, but (R) is false

c) Both (A) and (R) are true and (R) is the correct explanation of (A)

d) (A) is false, but (R) is true

Answer: (c)

Question : 10

Consider the following statements :

  1. 10 g of ice at 0°C and 10 g of water at 0°C contain same amount of heat.
  2. The specific heat of ice at 0°C is equal to that of water at 0°C.
Which of the statements given above is/are correct ?

a) 1 and 2 both

b) 2 only

c) 1 only

d) None

Answer: (a)

The specific heat depends on the pressure volume and temperature of the substance.

IMPORTANT general science mcq EXERCISES

set 10 Online Quiz

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1648 heat wave motion sound optics oscillations based general science mcq set 10 question answer pdf
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