Question

What is the angle of incidence if the light which is incident on a flat surface makes an angle of 15° with the surface.

Answer 1

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According to the question, the incident Ray makes an angle of 15° with surface.

We know that the angle between Normal and surface is 90° , So the angle of incidence will be :-

⇒ ∠i = 90 - 15

Angle of incidence ∠i = 75°

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