Describe a simple experiment to show that
solids expand on heating
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Answer:
Method:
The apparatus consists of a metal ball which fits exactly through a ring attached to a stand when both are at room temperature.
Heat the ball using a Bunsen Burner for a few minutes and then try to pass it through the ring.
Observations:
The ball does not pass through the ring when it is hot.
leave the ball on the ring and allow it to cool for some time. The ball will now pass through the ring
Conclusions:
This proves that solids expand on heating and contract on cooling.
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