Question

Two copper spheres of equal radius one hollow and other solid

Answer 1

Explanation:

Two copper spheres having the same radii but one is solid and another is hollow with same potential having same number of charges.

see the attachment

Answer 2

Answer:

Since the capacitance of a spherical body, ie copper depends only on the radius and is independent of mass, both the hollow sphere and the solid sphere of copper having same radii will have the same capacitance. If both the spheres have the same potential, they both also have the same charge.