Two rods A and B of the same metal, same length, but one solid and the other hollow, are heated to the same rise in temperature. Then 1. the solid rod A expands more than the hollow rod B 2. the hollow rod B expands more than the solid rod A 3. the hollow rod B contracts, but the solid rod A expands 4. both the rods A and B expand the same.

Two rods A and B of the same metal, same length, but one solid and the

1.	Two rods A and B of the same metal, same length, but one solid and the other hollow, are heated to the same rise in temperature. Then 1. the solid rod A expands more than the hollow rod B 2. the hollow rod B expands more than the solid rod A 3. the hollow rod B contracts, but the solid rod A expands 4. both the rods A and B expand the same.
Answer» Two rods A and B of the same metal, same length, but one solid and the other hollow, are heated to the same rise in temperature. Then both the rods A and B expand the same.

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