A solid ball of metal has a concentric spherical cavity within it. What change can you observe in the volume of the cavity when the ball is heated?
A
Volume of the cavity increases.
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B
Volume of the cavity remains same.
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C
Volume of the cavity decreases.
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D
Volume of the cavity reduces to half its initial volume.
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Solution
The correct option is A Volume of the cavity increases. When the ball is heated, the ball expands. As a result, the cavity also expands which results in increase in the volume of cavity.