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What is meant by thermal expansion? explain expansion of solid with the help of an experiment?​

Answer»

t is meant by thermal EXPANSION?Thermal expansion is the tendency of matter to change in SHAPE, volume, and area in response to a change in TEMPERATURE. ... The degree of expansion divided by the change in temperature is called the material's coefficient of thermal expansion. It is found to generally VARY with temperature.➡️⤵️Explain expansion of solid with the help of an experiment?Thermal expansion in solids can be UNDERSTOOD with the ball and ring experiment.Take a metal ball and a ring, the diameter of the ball should be such that it just passes through the ring.Heat the ball for some time over a burner.Try to pas-s it through the ring.



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