Question

State the correlation between the following- (2)
a) The speed of light through a medium and its optical density
b) Refractive index and optical density of a medium

Answer 1

a) Light Energy | Short/Long Answer Questions

A medium is denser than air, if its speed of light in the medium is less than the speed of light in air. Similarly, a medium is less dense than air, its speed of light in the medium is more than the speed of light in air. Speed of light is 1/density of medium.

b) We can say that optical density is directly proportional to refractive index and inversely proportional to speed of light for that given medium. Complete Answer: ... Thus, denser is the medium, lesser will be the speed of light as a denser medium has great refractive index value.