Question

A metallic wire is stretched in such a way that its new length becomes double its original length. How does its specific heat capacity change?

• A. becomes double
• B. becomes 4 times
• C. becomes \(\frac{1}{2}\)
• D. remains the same

Hint:

Remember to distinguish between intrinsic properties (like density, resistivity, specific heat capacity) which depend only on the material, and extrinsic properties (like mass, volume, resistance) which depend on the amount or shape of the material.

Answer 1

The Correct Option is D

Step 1: Understanding the Concept:
Specific heat capacity is the amount of heat required to raise the temperature of unit mass of a substance by 1 degree Celsius.
Step 2: Detailed Explanation:
Specific heat capacity is a characteristic property of a material. It depends only on the nature of the substance and its state of matter.
Stretching a wire changes its physical dimensions (length and area) but does not change the material it is made of.
Because the material is the same, the specific heat capacity remains unchanged.
Step 3: Final Answer:
The specific heat capacity remains the same.