Two identical rods, one hollow and the other solid are heated to … - Vidyadip

Question

Two identical rods, one hollow and the other solid are heated to the same rise in temperature. Which will expand more?

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Answer

The increase in length of a rod on heating does not depend whether it is hollow or solid. If we heat two rods of the same metal and of the same length, but one hollow and the other solid , to the same rise in temperature, we find that both the rods expand to the same extent.

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