Physics-Thermal Expansion

NEET Physics Thermal Expansion Assertion Reason Question

Type: Assertion Reason-assertion-Easy-Class 11

Assertion (A): Linear expansion occurs when a material's length increases due to a temperature rise. | Reason (R): The coefficient of volume expansion is three times the coefficient of linear expansion for isotropic materials.

A

Both A and R are true, and R explains A.

B

Both A and R are true, but R does not explain A.

C

A is true but R is false.

D

A is false.

Correct Answer

Option B

Detailed Explanation

While both the assertion and reason are true, the reason provided does not explain the assertion. Linear expansion is specifically about changes in length, while the reason relates to the relationship between volume and linear expansion.

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