Question

Which of the following absolute refractive index values is not possible



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Answer 1

Explanation:

Any medium having a refractive index below 1 would violate something which has that often be proven that we can quite savely assume it is a nature of law. Absolute refractive index being less than one means speed of light in that medium is more then c(3*10^8 m/s). Which is not observed and not possible.

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