Which of the following statements 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 tempera-ture of the body Select the correct answe

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Q: 51 (NDA-I/2018)

Which of the following statements 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 tempera-ture of the body
Select the correct answer using the code given below :

question_subject: 

Science

question_exam: 

NDA-I

stats: 

0,11,59,23,18,18,11

keywords: 

{'specific heat': [0, 0, 0, 3], 'body': [27, 3, 23, 37], 'tempera': [0, 0, 0, 2], 'shape': [6, 0, 3, 12]}

The correct answer is option- 4.

Statement 2 is correct - The specific heat of a body is independent of its mass and shape. Specific heat is defined as the amount of heat energy required to raise the temperature of a unit mass of a substance by one degree Celsius. It is a characteristic property of a substance and does not vary with the mass or shape of the body.

Statement 3 is incorrect - The specific heat of a body depends on both its mass and temperature. Different substances have different specific heat values, and the amount of heat required to raise the temperature of a body depends on the mass and specific heat of the body.

Statement 1 is incorrect - The specific heat of a body is independent of its shape. The shape of a body does not affect the amount of heat energy required to raise its temperature.

Therefore, option- 4 is the correct answer as it correctly states that the specific heat of a body is independent of its mass and shape.