Question

Is the ratio between the sine of an angle of incidence to the sine of an angle of refraction is called the refractive index?

Answer 1

Answer: Yes

Step-by-step explanation:

Refractive index is a number that describes the speed of light through a material.

n = sin I/ sin r

It has no dimension and it is equal to the velocity of light c of a given wavelength in an empty space divided by its velocity v in a substance.

n = c/v

Answer 2

Yes

Step-by-step explanation:

Yes it is called the refractive index denoted by n

n=sin<i/sin<r