Question

Q.37refractive index of a thin soap film of a uniform thickness is 1.38. The smallest thickness of the film that gives an interference maxima in the reflected light when light of wavelength 5520 falls at normal incidence is

Answer 1

It's a question of physics

It isn’t necessarily, depending on the masses and OD. (s = solid, o = Christmas ornament).

If Ro = Rs, the moments of inertia are the same if:

2/5 Ms = 2/3 Mo; so if if Ms < 5/3 Mo, then the solid sphere will have a smaller moment of inertia than the hollow sphere of the same size.