Question

Which of the following graph represents the correct variation of angle of incidence (i) and

angle of deviation (δ)? Explain your answer.​

Answer 1

Answer:

option A is correct

Explain:

It has been found experimentally that as we increase the angle of incidence first the angle of deviation first decreases, reaches to a minimum value and then again increases.

The angle of incidence at which the deviation is minimum is called the minimum deviation position and the angle of deviation is called angle of minimum deviation δ

m

Under such a condition the rays travel parallel to the base inside the prism.

Answer 2

Answer:

A is the correct option