Question

write the factor affecting the refractive index of a medium​

Answer 1

The refractive index of any other medium is defined relative to the refractive index of a vacuum, which is assigned a value of 1. Thus, a refractive index of 1.33 for water means that light travels 1.33 times faster in a vacuum than in water.

diagram showing refraction of light

Figure 1: The refraction of light. In this diagram, light travels faster in medium A than it does in medium B.

Refractive indices can be measured for different types of mediums including transparent or coloured solutions, turbid suspensions, emulsions, fine powders, ect