A ray of light passes from a denser to a rarer medium At the

Last updated: 6/14/2023

A ray of light passes from a denser to a rarer medium At the surface of separation the angle of incidence is i and the angle between reflected and refracted rays is 90 If the angle of reflection and refraction are r and r respectively then the value of critical angle is A sin tanr B sin tanr C sin tani D tan sini of two media X and Y