Question

The angle of prism is given 120° and other two are equally 30° angles. The incident ray incident with the angle of 60° on its one face. complete the path of ray through the prism with a refractive index of √3 from air . Also calculate the final angle of emergence.​

Answer 1

Explanation:

Angle of prism is A=30

o

,

Angle of incidence is i=60

o

,

Deviation is δ=30

o

,

Let angle of emergence be e ,

For prism relation between them is given by ,

δ+A=i+e,

putting the values we get,

30+30=e+60

∴e=0

Angle of emergence is 0.