A ray of light from a denser medium is incident on a rarer

Last updated: 6/20/2023

A ray of light from a denser medium is incident on a rarer medium at an angle 8 The reflected and refracted rays are at right angles to each other If r be the angle of refraction the critical angle for the pair of media is 1 tam sin 3 sin cos 2 sin tan 8 4 cos sin