Question

Define Snell law.
First and correct answer will be brainiest.

Answer 1

Snell law states that the ratio of sine of angle of incidence to the ratio of sine of angle of reflection is always a $<b>constant.</b>$

$<u>( sin /_i ) / ( sin /_r ) = constant</u>$

Here, constant = refractive index

Answer 2

Snell's law states that sin i/sin r=constant

here

i=angle of incidence

r=angle of refraction

constant=refractive index

Snell's law is also considered as the second law of refraction

hope it helps u