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What are the Two Laws of Refraction?

GeneralClass 12AllAnswered 27 Mar 2026
Answer

The two fundamental laws of refraction are:

First Law: The incident ray, refracted ray, and normal to the surface at the point of incidence all lie in the same plane.

Second Law (Snell's Law): The ratio of the sine of the angle of incidence to the sine of the angle of refraction is constant for two given media, eual to the ratio of their refractive indices.

General · Class 12