Question

3.) What is law of refraction with a
help of a glass stab. Show that incident,
ray and emergent Shores lateral displacement​

Answer 1

The refraction of light on travelling from one medium to another takes place obeying two laws known as the Laws of refraction of light.

1. The First law: The incident ray, the refracted ray and the normal at the point of incidence on the refracting surface (interface between two media),all lie in the same plane.

2. The second law:The second law of refraction was discovered by Dutch scientists Willebroad Snell, so this law of refraction is called Snell's law. The law states that ________ for oblique incidence of light of a definite colour the ratios of sine of angle of incidence to the sine of angle of refraction is constant for a given pair of media.

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