# Deviation Produced by a Triangular Prism

Physics

## diagram

### Plot of Angle of Deviation Vs Angle of Prism

Above plot show variation of angle of deviation with angle of incidence for prism angle 60 degree and refractive index 1.5.

## formula

### Variation in angle of deviation due to change in angle of incidence for a triangular prism

The angle of deviation dependent on the angle of incidence as:

where = angle of deviation
= angle of incidence
= angle of emergence
= angle of the prism
A plot between the angle of deviation and angle of incidence is shown in the figure. In general, any given value of , except for , corresponds to two values of and hence of .