Question:
A metallic ball has a spherical cavity at its centre. If the ball is heated, what happens to the cavity?
A metallic ball has a spherical cavity at its centre. If the ball is heated, what happens to the cavity?
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When metals expand due to heating, they expand in all directions, including expanding the cavities inside them.
Updated On: Apr 1, 2025
- Its volume increases
- Its volume decreases
- Its volume remains unchanged
- Its volume may decrease or increase depending upon the nature of heating process
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The Correct Option is A
Solution and Explanation
When a metallic ball is heated, it expands uniformly. This causes the ball to expand and the spherical cavity at the centre to increase in size. The metal expands outward, so the cavity volume increases as well.
Hence, the correct answer is (a).
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