A ray of light is incident at an angle of on one face of prism which has an angle of
PHYSICS · Multi-part · CBSE · Physics · Ray Optics and Optical Instruments · Ray Optics and Optical Instruments
Problem
A ray of light is incident at an angle of 60∘ on one face of prism which has an angle of 30∘. The ray emerging out of the prism makes an angle of 30∘ with the incident ray. [1978]
(1) Show that the emergent ray is perpendicular to the face through which it emerges
(2) calculate the refractive index of the material of the prism.