Q- A beam of white light is incident on a glass prism at an angle of θ = 37⁰ with the normal to the surface. The emergent angle for red light is φ_r = 75⁰ and for violet light is φ_v = 79⁰.

(a) If the angle of the prism is A = 45⁰, find the refractive index of the glass for red and violet light.

(b) What is the speed of red and violet light inside the glass.

Solution: