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Describe an experiment to prove that solids expands on heating and contract on cooling?

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Describe an experiment to prove that solids expands on heating and contract on cooling?
posted Aug 31, 2018 by Arshad Ayub

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Take a metallic ball and ring. The diameters of the ring and the ball are such that ball is just able to pass through the ring at the room temperature. Now heat the ball and try to pass the ball through the ring. It does not pass through the ring. This clearly shows that on heating the diameter of the ball has increased i.e., the solid has expanded. Now cool the ball to room temperature. After cooling it is found that ball passes through the ring which clearly shows that diameter of the ball has decreased, i.e., the solid contracts on cooling.

Check the following the video will help -

answer Sep 3, 2018 by Salil Agrawal
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