Question

What is meant by critical angle? a) The maximum angle of incidence inside a medium where light is totally reflected b) The minimum angle of incidence inside a medium where light is totally polarized c) The one angle at which light bounces off a clear smooth substance according to the law of reflection d) The minimum angle of incidence inside a medium where light is totally reflected.

Answer 1

Option C

Step-by-step explanation:

The minimum angle of incidence inside a medium where lights are not longer refracted but totally reflected is referred to as critical angle