Question

A ray of light is incident at grazing incidence on one face of an equilateral prism made from a transparent material of refractive index √2. The angle of emergence, and the angle of deviation, for this ray, would be equal to (respectively),

Answer 1

Correct option: (1)

Explanation: 

For the ray, incident at grazing incidence, on one face, the corresponding angle of refraction, r₁, would be given by