A ray of light travelling inside a rectangular glass block

Last updated: 6/7/2023

A ray of light travelling inside a rectangular glass block of refractive index 2 is incident on the glass air surface at an angle of incidence of 45 The refractive index of air is one Under these conditions the ray KEE 9 S 1 Will emerge into the air without any deviation 2 Will be reflected back into the glass 3 Will be absorbed 4 Will emerge into the air with an angle of refraction equal to 90