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Find out, from Table, the medium having highest optical density. Also find the medium with lowest optical density.
![YCIND_220926_4499_Light reflection and Refraction_18.png](https://resources.cdn.yaclass.in/2ae45d6f-e6cf-47c1-b2b7-b498891b8a01/YCIND2209264499LightreflectionandRefraction18w400.png)
Absolute refractive index of some material media
The optical density of a medium is related to its refractive index. A medium with the lowest refractive index will have the optical density and vice-versa.
So,
Lowest optical density -
Highest optical density -