Heat and Thermodynamics MCQ question and answer with solution

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Each section contains 100 MCQs on Heat and Thermodynamics .

When heated from 0°C to 10°C volume of given mass of water will

A) increase gradually B) decrease gradually C) increase and then will decrease D) decrease and then will increase

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Opening the door of refrigerator kept in the room

A) You can cool the room to some degree B) You can cool the room to the temperature of refrigerator C) You are warm the room a little D) You can neither cool nor warm the room

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

During hot weather, the fan produces a feeling of comfort. This is because

A) fan supplies cool air B) fan cools the air C) our perspiration evaporates rapidly D) conductivity of air increases

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

The principle of evaporation of liquid to absorb heat, is used in-

A) Microwave oven B) Refrigerator C) Geyser D) Electric kettle

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

If the temperature of air increases, how would it affect its ability to assume water vapour?

A) Decrease B) Increase C) Firstly decrease, then again increase D) Remains constant

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

To change a temperature from the Kelvin scale to the Celsius scale, you have to

A) add 273 to the given temperature B) multiply the given temperature by 273 C) subtract 273 from the given temperature D) divide the given temperature by 273

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Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Which one of the following processes is not a part of long-wave radiation?

A) Conduction B) Scattering C) Convection D) Radiation

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

What changes will the volume of water show if the temperature is lowered from 9°C to 3°C?

A) The volume will not change B) The volume will first increase and then decrease C) The volume will first decrease and then increase D) Water will freeze

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Relation between the colour and the temperature of a star is given by

A) Wien's Displacement Law B) Planck's Law C) Hubble's Law D) Fraunhofer's Diffraction Law

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

100

In which of the following phenomena do heat waves travel along a straight line with the speed of light?

A) Thermal conduction B) Thermal convention C) Thermal radiation D) Both A and C

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

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Heat and Thermodynamics MCQ question and answer with solution | Physics Gk MCQs