First slide

Thermal expansion

Question

A solid sphere and a hollow sphere of same material have same mass. When they are heated by 50^oC, increase in volume of solid sphere is 5 cc. The expansion of hollow sphere is

Moderate

A

5 cc
B

More than 5 cc
C

Less than 5 cc
D

nothing can be said

Solution

Volume of the hollow sphere is more so it expands more.

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