Question

What is refractive index?​

Answer 1

$\huge \mathbb \red{HEY \: THERE ♡}$

Refractive Index:

• The ratio of the sine of angle of incidence to the sine of angle of refraction in case of lens for light of a given colour and given pair of media is constant.

• Note** It is also called Snell's Law of Refraction.
• $\mathsf \orange{\frac{sine \: i}{sine \: r} = constant}$

$\huge \mathbb\pink{HOPE \: IT \: HELPS}$