Question

Two spheres of the same size are made of the same material but one is hollow and the other is solid. They are heated to the same temperature, then

• A. Both spheres will expand equally.
• B. Hollow sphere will expand more than solid one.
• C. Solid sphere will expand more than hollow one.
• D. Hollow sphere will expand double that of solid one

Answer 1

The correct option is A Both spheres will expand equally.

Both the spheres have the same volume since the radii are same.
$V=V_0(1+\gamma t)$ ........(1)
The volume after expansion will be same as per equation (1)