Question

Laws of Refraction........

Answer 1

1. the incident ray, the refracted ray and the normal to the interface of two media at the point of incidence all lie in the same plane. 2. For the light of a given color and for given pair of media, the ratio of the sine of the angle of incidence to the sine of the angle of refraction is constant.

Answer 2

when incident ray , reflected ray and the normal ray at the point of incidence all lie on the same plain.

according to the snell law

the ratio of sine of angle to incidence to the sine of angle of refraction remains constant at the given pair of the media.

the given pair of media is known as

refractive index.

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