Question

A ray of light is incident normally on a refracting face of a prism of prism angle A and suffers a deviation of angle δ. Prove that the refractive index n of the material of the prism is given by n = sin(A + δ)/sin A.

The refractive index of the material of a prism is √2. If the refracting angle of the prism is 60°, find the (1) Angle of minimum deviation, and (2) Angle of incidence.

Electromagnetic waves with wavelength 10 nm are called :

Which one of the following has the highest frequency ?