Question

What is absolute refraction index. State the relraction b/w refraction index and optical density?

Answer 1

Answer:

The refractive index is a measurement of optical density. A medium with a low optical density, would have also a low refractive index. For example air, having a low optical density has a refractive index of 1.0003, whereas water, with a higher optical density, has a higher refractive index of 1.333.

Answer 2

Answer:

Absolute refractive index is the refractive index of a medium in vacuum. More specifically, it is the ratio of the speed of light in vacuum to the speed of light in that medium. It is always greater than one.

The more optically dense a material is, the slower that a wave will move through the material. The refractive index is a measurement of optical density. ... For example air, having a low optical density has a refractive index of 1.0003, whereas water, with a higher optical density, has a higher refractive index of 1.333.

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