Question

How does the angle of minimum deviation measured?

Answer 1

hey frnd....
When a ray of light suffers minimum deviation through a prism.

1) Angle of incidence is equal to the angle of emergence.
2) Ray of light passing through the prism is parallel to the base of the prism.
3) Angle of refraction inside the material of prism is equal to half the angle of prism.

HOPE THIS HELP YOU ☺☺❤❤

Answer 2

Hope this will help you:-

Angle of deviation is the angle through which an incident ray deviates by measuring. the angle of deviation for various angles of incidence we can determine the angle of minimum deviation and refractive. index of the prism.  if a is angle of the prism and D is the angle of minimum deviation.