Thank you for reporting, we will resolve it shortly
Q.
Refractive index of a pair of media depends on
Ray Optics and Optical Instruments
Solution:
Refractive index depends on optical densities of mediums $1$ and $2$ , it also depends on temperature (or optical density varies with temperature), but it is independent of angle of incidence. Refractive index for a pair of medium is same for all angle of incidence.