Question

can we consider the refractive index means bending of light away from the away from the normal and it is a degree and what is mean of getting refractive index is it is a angle that bends away from normal​

Answer 1

Explanation:

it is a critical angle 90 degree angle

Answer 2

Refractive index of second medium with respect to the first medium is the ratio of the sine of angle of incidence in the first medium to the sine of angle of refraction in the second medium.

Refractive index has no units because it is the ratio of two similar quantities.

It is used to find the speed of light in any of the two medium.

The formula for that is:-

Refractive Index = speed of light in medium 1

_______________________

speed of light in medium 2

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