Question

Under minimum deviation condition in a prism, if a ray is incident at an angle `30^(@)`, the angle between the emergent ray and the second refracting surface of the prism is
A. `0^(@)`
B. `30^(@)`
C. `45^(@)`
D. `60^(@)`

Answer 1

Correct Answer - D
In minimum deviation `i=e=30^(@)`, so angle between emergent ray and second refracting surface is `90^(@)-30^(@)=60^(@)`