Question

Define Snell's Law.
Take your time and answer, it's not urgent.

Answer 1

Answer:

According to Snell's law," The ratio of sine of angle of incidence and the sine of angle of refraction is a constant

Answer 2

Explanation:

Definition :- Snell’s law is defined as “The ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant, for the light of a given colour and for the given pair of media”. Snell’s law formula is expressed as:

sini \ sinr = constant = μ

[Where i is the angle of incidence and r is the angle of refraction. This constant value is called the refractive index of the second medium with respect to the first.]

Example :-

Question: If the angle of incidence is 25° and angle of refraction is 32°, find the refractive index of the media.

Solution: Given,

↪Angle of incidence, i = 25°

↪Angle of refraction, r = 32°

↪Using Snell’s law formula,

↪sini \ sinr = μ

↪ sin25 \ sin32 = μ

↪0.4226 \ 0.5299 = μ

↪ μ = 0.7975 ≅ 0.8

Hence, the refractive index of the media is 0.8.