Two spheres A and B are made of the same material and have the same radius. Sphere A is hollow and sphere B is solid. Both the spheres are heated to the same temperature. Which of the following is correct ?

Options

A. The solid sphere expands more
B. The hollow sphere expands more
C. Expansion is same for both
D. Nothing can be said about their relative expansion if their masses are not given

Answer

C

Explanation

As `Delta V = gamma V Delta T`
Here V, `gamma` and `Delta T` are same for both solid and hollow spheres.
So the expansion for both spheres will be equal.