Write about laws of refraction. (OR) Write the laws of refraction.

1.	Write about laws of refraction. (OR) Write the laws of refraction.
Answer» Laws of refraction : 1. The incident ray, the refractive ray and the normal to interface of two transparent media at a point of incidence lie in the same plane. 2. During refraction light follows Snell’s law, i.e., the ratio of sine of angled of incidence to sine of angle of refraction is constant. n₁ sin i = n₂ sin r (OR) sin i/ sin r = constant.

Answer»

Laws of refraction :

1. The incident ray, the refractive ray and the normal to interface of two transparent media at a point of incidence lie in the same plane.

2. During refraction light follows Snell’s law, i.e., the ratio of sine of angled of incidence to sine of angle of refraction is constant.

n₁ sin i = n₂ sin r (OR) sin i/ sin r = constant.

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