What will be the angle of deviation through a prism and 60°, when ang

1.	What will be the angle of deviation through a prism and 60°, when angles of incidence and emergence are 45° each?
Answer» Given: Angle of prism, A = 60° Angle of incidence, i = 45° Angle of emergence e = 45° To find: Angle of deviation = D We know A + D = i + e So, D = i + e – A D = 45° + 45° – 60° = 30° Hence angle of deviation is 30°

What will be the angle of deviation through a prism and 60°, when angles of incidence and emergence are 45° each?

Answer»

Given: Angle of prism, A = 60°

Angle of incidence, i = 45°

Angle of emergence e = 45°

To find: Angle of deviation = D

We know

A + D = i + e

So, D = i + e – A

D = 45° + 45° – 60° = 30°

Hence angle of deviation is 30°