Practice Book for MHT-CET Physics (Waves and Thermodynamics)>Chapter 1 - Thermal Properties of Matter>TOPICWISE QUESTIONS>Q 95

MEDIUM

MHT-CET

IMPORTANT

Earn 100

Two identical calorimeters of negligible heat capacities are filled with two liquids $A$ and $B$ whose densities are in the ratio $4 : 3$ . The ratio of times taken in cooling from $80^{o} C$ to $75^{o} C$ is $5 : 6$ . The ratio of their specific heats is

50% studentsanswered this correctly

Important Questions on Thermal Properties of Matter

MEDIUM

MHT-CET

IMPORTANT

Practice Book for MHT-CET Physics (Waves and Thermodynamics)>Chapter 1 - Thermal Properties of Matter>TOPICWISE QUESTIONS>Q 96

A blackened metal foil receives heat from a heated sphere placed at a distance

r

from it. It is found that the foil receives power

P

. If the temperature and the distance of the sphere are doubled, then, the power received by the foil will be,

MEDIUM

MHT-CET

IMPORTANT

Practice Book for MHT-CET Physics (Waves and Thermodynamics)>Chapter 1 - Thermal Properties of Matter>TOPICWISE QUESTIONS>Q 97

The temperature of a room is

30 ° C

. A body kept in it, takes

4 \min

for cooling from

61 ° C

to

59 ° C

. The time taken by the body in cooling from

51 ° C

to

49 ° C

will be:

HARD

MHT-CET

IMPORTANT

Practice Book for MHT-CET Physics (Waves and Thermodynamics)>Chapter 1 - Thermal Properties of Matter>TOPICWISE QUESTIONS>Q 98

A calorimeter of water equivalent

5 \times 10^{- 3} kg

having

25 \times 10^{- 3} kg

of water takes

3

minutes to cool from

28 ° C

to

21 ° C

. When it is filled with

30 \times 10^{- 3} kg

of tarpin oil, it takes

2

minutes to cool from

28 ° C

to

21 ° C

. Specific heat of tarpin oil will be?