Question

Explain the 2nd law of refraction (also known as snell's law)

Explain refractive index briefly

✘✘ DON'T SPAM ✘✘​

Answer 1

The second law of refraction states that

The ratio of sin of angle of incidence and sin of angle of refraction is equal to a constant which is known as refractice index...

It is denoted as:

`\large \boxed{ \purple{ \tt ( \sin(i) )/( \sin(r) ) = \mu \: (refractive \: index) }}`