A ray of light is incident on one of the faces of the angle prism with an angle `40^(@)`
Channel: Doubtnut
Date: 2020-03-29

A ray of light is incident on one of the faces of the angle prism with an angle `40^(@)` with the surface. The angle of the prism is `60^(@)`. The emergent ray is deviated through an angle `38^(@)`. The angle of emergence is