Question

What do mean by optically rear or optically denser medium?

Answer 1

the light passes through a normal ray and didn't diverged then it is said optically rare medium


optical denser = if the ray passes through normal ray and get diverged is known as denser medium

Answer 2

Optically denser medium means that the particle in that medium are more crowded as compared to the optically rarer medium,which has less crowded particles.The medium which has more density is called as optically denser medium.The medium with low density is termed as optically rarer medium.A denser medium always slows down the light speed ,so it tries to cover the same distance.In rarer medium,the speed of light is more.Optically denser medium has high refractive index as compared to optically rarer medium.

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