(i) A ray of light incident on face AB of an equilateral glass prism, shows minimum deviation
Channel: Doubtnut
Date: 2020-01-03

(i) A ray of light incident on face AB of an equilateral glass prism, shows minimum deviation of `30^(@)`. Calculate the speed of the light through the prism. (ii) Find the angle of incidence at face AB so that the emergent ray grazes along the face AC.