Question

If angle of deviation is 180 degrees, then what is the angle of incidence​

Answer 1

Answer:

The Angle of Deviation is the angle equal to the difference between the angle of incidence and the angle of refraction of a ray of light passing through the surface between one medium and another of different refractive index. Example: A prism has a refractive index 23 and refracting angle 90o.

Answer 2

Answer:

0

Explanation:

we know that ;

180-2i=d

=>180-2i=180

=>2i=0

=>i=0