A light ray falls on a glass surface of refractive index √3, at an angle 60°. The angle between the refracted and reflected rays would be

Question

Accepted Answer

(3) 90°. Given: μ=√3 and an angle of incidence i=60°. Idea: find the refraction angle first; the reflected and refracted rays both leave the same point on the surface, one above it and one below. sin r=(sin 60°)/(√3)=(√3)/(2√3)=1/2 r=30° The reflected ray sits 60° from the normal above the surface and the refracted ray 30° from the same normal below it. Angle between them =180°-60°-30°=90°

A light ray falls on a glass surface of refractive index √3, at an angle 60°. The angle between the refracted and reflected rays would be

Step-by-step solution

Why the other options are wrong