Physics
Two rods A and B of the same metal, same length, but one solid and other hollow, are heated to the same rise in temperature. Then:
- the solid rod A expands more than the hollow rod B
- the hollow rod B expands more than the solid rod A
- the hollow rod B contracts, but the solid rod A expands
- both the rods A and B expand the same
Heat Energy
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Answer
both the rods A and B expand the same
Reason — The increase in length of a rod on heating does not depend on whether it is hollow or solid.
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