Question

1 point
3. what is the formula of
snell's law?​

Answer 1

Answer :

★ Law of Refraction :

• The incident ray, the normal to any refracting surface at the point of incidence and the refracted ray all lie in the same plane called of incidence or plane of refraction$.$
• sin i/sin r = constant for any pair of media and for light of a given wavelength. This is known as snell's law.

Also,

• sin i/sin r = n₂/n₁ = v₁/v₂ = λ₁/λ₂

For applying in problems remember

• n₁sin i = n₂sin r

Cheers!