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why does refraction does not happen when the ray pass through normal obliquely???

why does refraction does not happen when the ray pass through normal obliquely???

Grade:11

1 Answers

Subhicsha
12 Points
5 years ago
We ould get the answer using snells law.i.e sine (of incident ray)*refractive index of that medium =sine(of refracted ray.
The angle of incidence at the normal is 0. Anything * 0 gives 0    So the refracted ray is also 0

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