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Optical Density

How does the ...

Question

How does the speed of light determine the optical density of a medium ?

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Solution

If the speed of light in a medium is less than the speed of light in air, this means the Medium is Denser than air.
If the speed of light is more than the speed of light in AIR, this means the Medium is Less Denser than air.
i.e. the speed of light is 1/density of medium

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