Question

what happens when the incident ray strike on the surface of the prism with angle equal to Critical Angle and it is coming from the medium to denser ..​
remember that incident ray is coming from the rarer medium to denser and the total internal refraction is applied when the medium is coming from denser to rarer to remember and give answer carefully​

Answer 1

Answer:

When the angle of incidence is equal to the critical angle, the angle of refraction is equal to 90°. If the angle of incidence is bigger than this 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

Answer 2

When the angle of incidence is equal to the critical angle, the angle of refraction is equal to 90°. If the angle of incidence is bigger than this 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.