Question

does angle of incidence always equal angle of refraction​

Answer 1

Explanation:

Angle of incidence is equal to angle of reflection not refraction. Light not only bounces off surface it goes through some of them often slowing down and changing direction in the process called refraction. It occurs at the point where light travels from one medium to another of different density.

Answer 2

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No. The angle of incidence is not always equal to angle of refraction. And this happens in the case of critical angle.