Question

3. Describe a simple experiment to show that
solids expand on heating.
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Answer 1

Answer:

Take a metallic ball and ring. The diameters of the ring and the ball are such that ball is just able to pàss through the ring at the room temperature. Now heat the ball and try to pàss the ball through the ring. It does not pàss through the ring.

Explanation:

Solids also undergo thermal expansion. Railroad tracks and bridges, for example, have expansion joints to allow them to freely expand and contract with temperature changes.