A ray of light is incident at an angle of `60^(@)` on one face of a prism of angle `30^(@)`.
Channel: Doubtnut
Date: 2020-08-30

A ray of light is incident at an angle of `60^(@)` on one face of a prism of angle `30^(@)`. The ray emerging out of the prism makes an angle of `30^(@)` with the incident ray. The emergent ray is