Refractive index means

Asked by geethasubramanyam141 | 20th Feb, 2020, 10:20: PM

Expert Answer:

Refractive index is the ratio of velocity of light in vacuum to the velocity of light in the specified medium. 
The extent of change in the direction of light that take place at the boundary of given paid of media is expressed in terms of refractive index. 

Answered by Shiwani Sawant | 22nd Feb, 2020, 12:04: AM