Question

what are laws of refraction?

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Answer 1

The law of refraction states that the incident ray, the refracted ray, and the normal to the interface, all lie in the same plane.

Light flint: 1.58

Air (STP): 1.00029

Heavy flint: 1.65

Diamond: 2.42

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Answer 2

the principle that for a ray, radar pulse, or the like, that is incident on the interface of two media, the ratio of the sine of the angle of incidence to the sine of the angle of refraction is equal to the ratio of the velocity of the ray in the first medium to the velocity in the second medium and the incident ray