Heat and Thermodynamics MCQ question and answer with solution

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Each section contains 100 MCQs on Heat and Thermodynamics .

Surface water of a lake is about to freeze. What will be the temperature (in °C) of water at the bottom of the lake?

A) 0 B) -1 C) 1 D) 4

Discuss

Answer & Solution

Answer: Option D

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

Which of the following statement(s) about specific heat of a body is/are correct?
1. It depends upon mass and shape of the body.
2. It is independent of mass and shape of the body.
3. It depends only upon the temperature of the body.

A) Only 1 B) 2 and 3 C) 1 and 3 D) Only 2

Discuss

Answer & Solution

Answer: Option A

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

Why are dewdrops not formed on a cloudy night?

A) Clouds absorb the radiation released from the Earth's surface B) Clouds reflect back the Earth's radiation C) The Earth's surface would have low temperature on cloudy nights D) Clouds deflect the blowing wind to ground level

Discuss

Answer & Solution

Answer: Option B

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

Assertion (A): The handle of pressure cooker is made up of Abonite.
Reason (R): Abonite is a hard material.

A) Both (A) and (R) are true and (R) is the correct explanation of (A) B) Both (A) and (R) are true, but (R) is not the correct explanation of (A) C) (A) is true, but (R) is false D) (A) is false, but (R) is true

Discuss

Answer & Solution

Answer: Option B

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

The woollen clothes keep us warm in winter because they

A) supply heat B) do not radiate heat C) prevent air from contacting the body D) prevent the heat of the body from escaping

Discuss

Answer & Solution

Answer: Option D

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

What is the use of thermostat?

A) To measure the temperature B) To increase the temperature C) To maintain the temperature D) To convert heat into electricity

Discuss

Answer & Solution

Answer: Option C

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

Thermal conductivity of a solid metal with increasing temperature-

A) Will grow B) Will decrease C) Will remain D) Its decreases or increase will depend on temperature

Discuss

Answer & Solution

Answer: Option B

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

Clear nights are colder than cloudy nights because of . . . . . . . .

A) conduction B) condensation C) radiation D) insulation

Discuss

Answer & Solution

Answer: Option C

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

Heat transfer horizontally within the atmosphere is called

A) conduction B) convection C) absorption D) advection

Discuss

Answer & Solution

Answer: Option D

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

When soggy biscuits are kept inside the fridge for sometime they become crisp because

A) Cooling releases extra moisture B) Humidity inside the fridge is low and extra moisture is absorbed C) Humidity inside the fridge is high and extra moisture is absorbed D) Pressue inside the fridge is high and help in releasing extra moisture

Discuss

Answer & Solution

Answer: Option B

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