Question

A glass sphere of radius 5 x 10 m has a small bubble 2 x 10^-2 m from its centre. The bubble is viewed along a diameter of the sphere, from the side on which it lies. How far from the sphere will it appear? Refractive index of glass 1.5.

Answer 1

Since  \(\frac{\mu_2}{v} - \frac{\mu_1}{u} = \frac{\mu_2 - \mu_1}{R}\)

Given µ₁ = 1.5, µ₂ = 1, u = 5 x 10^-2 - 2 x 10^-2 = 3 x 10^-2 m

R = 5 x 10^-2