Question

Under what conditions, the angle of refraction will be equal to the angle of incidence ​

Answer 1

If both the media are having the same refractive index, then angle of incidence and angle of refraction are same. If the incident ray falls perpendicularly on the second medium, then the incident angle and refracted angle are same.

Answer 2

Answer:

if the refractive index of both media is same then the angle of refraction will be equal to the angle of incidence .