# State Snell'S Law. - Physics

Definition

State Snell'S Law.

#### Solution

Snell's law: The ratio of sine of the angle of incidence to the sine of angle of refraction is constant for a pair of media. This constant is called the refractive index of the second medium w.r.t the first. it is generally represented by the greek letter (mu)

i.e mu = "sin i"/"sin r"

Concept: Refraction of Light from a Plane Transparent Surface
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#### APPEARS IN

Frank ICSE Class 10 Physics Part 2
Chapter 2 Light
Exercise 2.1 | Q 2 | Page 88