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If the speed of light in a medium is ` 1.5 xx 10^(8) ` m/s. what is the absolute refractive index of the medium ?

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` n = c/v = ( 3 xx 10^(8) m//s)/(1.5 xx 10^(8) m//s) = 2`
This is the absolute refreactive index of the medium .
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