Question

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.

Options

• 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.

Answer 1

 both the rods A and B expand the same.