Question

2. Raju took two spheres of the same material with the same radius, but one is hollow while
the other is solid. Both spheres are heated to same temperature then
a. the solid sphere expands more
b. the hollow sphere expands more
c. expansion is the same for both the spheres
1. expansion does not takes place in both the cases​

Answer 1

Explanation:

The hollow sphere may have air or a fluid inside it, which will result in increased pressure by heating, so as to bulge more than the solid sphere. So hollow will expand more.

The hollow sphere may have air or a fluid inside it, which will result in increased pressure by heating, so as to bulge more than the solid sphere. So hollow will expand more.But if there is no air then ΔV=VγΔT , the both will expand same.