Two beam of red and violet color are made to pass separately through a prism (angle of the prism is `60^(@)`). In the positionof minimum deviationi, the angle of refraction will be

Options

A. `30^(@)` for both the colours
B. greater for the violet colour
C. greater for the red colour
D. equal but not `30^(@)` for both the colours

Answer

A

Explanation

In the position of minimum deviation angle of refraction r = `(A)/(2)`