Question

When light rays are incident on a prism at an angle of 45 the minimum deviation is obtained if the refractive index is root 2?

Answer 1

Given that, incident ray suffers minimum deviation. therefore, the ray inside the prism must be parallel to the base BC of the prism. ... ray suffers minimum deviation through the prism, the angle ofminimum deviation and refractive index of the material of the prism respectively, are. 30o, squareroot of 2. 45o ; square root of 2