MP Board · Class 10 · Science · Light – Reflection and RefractionState Snell's law of refraction of light.

Snell's law of refraction states that the ratio of the sine of the angle of incidence to the sine of the angle of refraction is always a constant value for the given pair of transparent media for light of a given single color. Mathematically, it is written as sin i divided by sin r equals a constant, which is represented by the relative refractive index of the second medium with respect to the first medium. This law plays a crucial role in understanding optical phenomena and lens design.