Question

Explain Total Internal reflection ,Find refractive index if critical angle for total reflected prism is 30 degree ,How it changes if angle is 45 degree.​

Answer 1

Answer:

90°

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°.

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