Question

what will happen if the angle of incidence in the denser medium exceeds the value of critical angle ?​

Answer 1

Answer:

If the angle of incidence is bigger than the critical angle, the refracted ray will not emerge from the medium, but will be reflected back into the medium. This is called total internal reflection. The critical angle occurs when the angle of incidence where the angle of refraction is 90°.

Answer 2

Explanation:

The answer is

If the angle of incidence is greater than the critical angle, light is not refracted at all, when it falls on the surface from a denser medium to a rarer medium.