Question

what is total internal reflection ?​

Answer 1

Explanation:

Total internal reflection is the operating principle of optical fibers, which are used in endoscopes and telecommunications. Total internal reflection is the operating principle of automotive rain sensors, which control automatic windscreen/windshield wipers.

Answer 2

total internal reflection means the complete reflection of a light ray reaching an interface with a less dense medium when the angle of incidence exceeds the critical angle

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