A ray of light is incident on the hypotenuse of a right-angled prism after travelling parallel to
Channel: Doubtnut
Date: 2020-08-30

A ray of light is incident on the hypotenuse of a right-angled prism after travelling parallel to the base inside the prism. If `mu` is the refractive index of the material of the prism, the maximum value of the base angle for which light is totally reflected from the hypotenuse is