Question

what is refractive index​

Answer 1

Answer:

Explanation:

whenever a ray of light changes its medium it gets refracted. the rate by which it gets deflected  from its path is called refractive index

Answer 2

Answer:

refrective index= speed of light in one medium/ speed of light in 2nd medium refrective index is called index of refrection it measures the bending of Ray when a light Ray pass through one medium to another one