Thermal Properties of Matter Test

Result

Thermal Properties of Matter Test - 83

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Weekly Quiz Competition

Question 1
4 / -1

If earth suddenly stops rotating about its own axis, the increase in it’s temperature will be

A

B

C

D
None of these

Solution
Question 2
4 / -1

Latent heat of ice is 80 cal/g. A man melts 60 g of ice by chewing in 1 minute. His power is

A
480W

B
336W

C
1.33 W

D
0.75W

Solution
Question 3
4 / -1

A faulty thermometer has its lower fixed point marked as —10°C and upper fixed point marked as 110°. If the temperature of the body shown in this scale is 62°, the temperature shown on the Celsius scale is

A
72^oC

B
82^oC

C
60^oC

D
42^oC

Solution
Question 4
4 / -1

If there are no heat losses, the heat released by the condensation of x g of steam at 100°C into water at 100^oC can be used to converty g of ice at 0^oC into water at 100^oC. Then, the ratio y : x is nearly

A
1:1

B
2.5:1

C
2:1

D
3:1

Solution
Question 5
4 / -1

The figure shows a glass tube (linear coefficient of expansion is α) completely filled with a liquid of volume expansion coefficient γ. On heating length of the liquid column does not change. Choose the correct relation between γ and α

A

B

C

D

Solution
Question 6
4 / -1

Two thermometers are used to record the temperature of a room. If the bulb of one is wrapped in wet hanky

A
The temperature recorded by both will be same

B
The temperature recorded by wet-bulb thermometer will be greater than that recorded by the other.

C
The temperature recorded by dry-bulb thermometer will be greater than the that recorded by the other

D
None of the above
Question 7
4 / -1

A pendulum clock keeps correct time at 0°C. Its mean coefficient of linear expansions is α /°C, then the loss in seconds per day by the clock if the temperature rises by t°C is

A

B

C

D

Solution
Question 8
4 / -1

The coefficient of apparent expansion of a liquid when determined using two different vessels A and B ate γ_{1
and γ₂ respectively. If the coefficient of linear expansion of the vessel A is α, the coefficient of linear
expansion of the vessel B is}

A

B

C

D

Solution
Question 9
4 / -1

The coefficient of volume expansion of a liquid is 49 × 10^–2 K^–1. Calculate the fractional change in its density when the temperature is raised by 30°C.

A
7.5 × 10^–2

B
3.0 × 10^–2

C
1.5 × 10^–2

D
1.1 × 10^–2

Solution
Question 10
4 / -1

A clock with a metal pendulum beating seconds keeps correct time at 0°C. If it loses 12.5 s a day at 25°C, the coefficient of linear expansion of metal pendulum is

A

B

C

D

Solution