Question

7. A ray of light incident at an angle of incidence i passes
through an equilateral glass prism such that the
refracted ray inside the prism is parallel to its base and
emerges from the prism at an angle of emergence e
(1) How is the angle of emergence e related to the
angle of incidence i?
(11) What can you say about the value of angle of
deviation in such a situation? (ICSE 2012)​

Answer 1

Answer:

1... e= I

2... in such a situation angle of deviation has minimum value

Answer 2

Answer:

I. angle of incidence <i = angle of emergence

ii. The angle of deviation is the angle of minimum deviation.

hope this helps