Question

(i) The diagram shows a ray of light incident on an equilateral glass prism placed in minimum deviation position.

Copy the diagram and complete it to show the path of the refracted ray and the emergent ray.

(ii) How are angle of incidence and angle of emergence related to each other in this position of the prism?

Answer 1

(i)

(ii) In this position, the angle of incidence (i) is exactly equal to the angle of emergence (e).

i = e