Question

37. In the position of minimum deviation of
prism
(a) Angle of incidence i = 0
(b) Angle of emergence e =0
(c) Angle of incidence angle of
refraction
(d) Angle of incidence
of incidence = Angle
Angle of
emergence​

Answer 1

Answer:

options 4 is the correct Anwswer

Answer 2

Deviation is found to be equal only when the angle of incidence is equal to the angle of reflection

we know that,

q = (i + e ) - A

q =angle of deviation

A = angle of prism

i= angle of incidence

e =angle of emergence

If i = e then,

q min =2i - A