set 10 MCQ Questions & Answers Detailed Explanation

Question : 1

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.

a) 1 and 2 both

b) 2 only

c) 1 only

d) None

Question : 2

The minimum height of mirror required to see whole stand up image of a man of height 1.50 metre shall be

a) 1.50 metre

b) 1.00 metre

c) 0.75 metre

d) 3.00 metre

Question : 3

Which one among the following statements is not correct?

a) In air or other gases, a progressive antinode occurs at a displacement node and a progressive node occurs at a displacement antinode

b) In progressive waves, the amplitude may be constant and neighbouring points are out of phase with each other

c) Transverse wave can be polarised while longitudinal wave cannot be polarised

d) Longitudinal wave can be polarised while transverse wave cnanot be polarized

Question : 4

Which of the following is a mechanical wave?

a) Light waves

b) X-rays

c) Radio waves

d) Sound waves

Question : 5

Thermostat is related to

a) Temperature

b) Air

c) Humidity

d) Clouds

Question : 6

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