Physics, asked by kashish0520, 10 months ago

what is meant by normal in refraction?

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Answered by ams68

4

Note that the angle of refraction is smaller than the angle of incidence. ... The ray of light which travels into the refracted, or second, medium and leaves the interface is called the reflected ray. A line perpendicular to the surface is imagined at the point of refraction. This line is called a normal.

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