Question
1. A ray of light incident at an angle of incidence 48° on a prism of refracting angle 60° suffers minimum deviation. Calculate the angle of minimum deviation.
[Hint : δmin = 2i – A]
2. What should be the angle of incidence for a ray of light which suffers minimum deviation of 36° through an equilateral prism?
[Hint : A = 60°, i = (A + δmin) / 2]