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Unit - 6.1 Heat Transfer — PHYSICS STD 8 — Question

ICSE BoardEnglish MediumSTD 8PHYSICSUnit - 6.1 Heat Transfer1 Mark
Question
Describe an experiment to prove that solids expands on heating and contract on cooling.
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Answer

Ball and Ring Experiment: This well known experiment shows that the solids expand on heating and contract on cooling. The apparatus consists of a metallic ball and ring such that at room temperature the ball just passes through the ring.

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