The ratio of sine of the angle of incidence to the sine of the angle of refraction is a constant for a given colour and for the given pair of media. Which law is this?

Correct option is D

The correct answer is (d) Snell's Law.
· Snell's Law, also known as the Law of Refraction, states that the ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant for a given colour of light and for the given pair of media.
· Mathematically, it is expressed as sin i/sin r =constant.
· This constant is known as the refractive index, which depends on the properties of the two media and the wavelength of the light.
· Snell's Law is fundamental in the study of optics and is used to describe how light bends when it passes from one medium to another.

Information Booster:
· Ohm's Law: States that the current through a conductor between two points is directly proportional to the voltage across the two points. V=IR.
· Newton's Law: Refers to Newton's laws of motion which describe the relationship between a body and the forces acting upon it, and its motion in response to those forces.
· Gauss's Law: One of Maxwell's equations, it states that the electric flux through any closed surface is proportional to the enclosed electric charge. ΦE=Q/ϵ0