Question

What are the rules for refraction
of light ?​

Answer 1

Explanation:

(a) the incident ray, the refracted ray, and the normal at the point of incidence all lie on the same plane.

(b) the ratio of sine of angle of incidence to the sine of angle of refraction is a constant and this constant is called refractive index (n)

Answer 2

$\huge\mathcal{\underline{\underline{Answer:-}}}$

The bending of the rays of light for it passes from one medium to another medium is called refraction.

$\large\mathcal{\underline{\underline{Laws\:of\:Refraction:-}}}$

Law 1 • This law is also known as the Snell's law as was discovered by Willbrord Snell.

The ratio of sine of the angle of incidence to the sine of the angle of refraction for a particular pair of media is always constant i.e., if the angle of incidence is i, and the angle of refraction is r,

= sine of the angle of incidence / sine of angle of refraction

= sin i / sin r

= constant

Law 2 • The incident ray, the refracted ray, and the normal at the point of incidence all lie in the same plane.