A solid ball of metal has a concentric spherical cavity within it. If the ball is heated, the volume of the cavity will

Increase

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Decrease

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Remain unaffected

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None of these

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Solution

The correct option is A
Increase

When the ball is heated, expansion of ball and cavity both occurs, hence volume of cavity increases.

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A solid ball of metal has a concentric spherical cavity within it. If the ball is heated, the volume of the cavity will ___ .

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