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My textbook says the absolute refractive index of a medium $$n = \dfrac{c}{v}$$
where $c$ is the speed of light in vacuum and $v$ is the speed of light in the medium.
Why hasn't it been chosen the other way round i.e. $n = \dfrac{v}{c}$?
My textbook says absolute refractive index of a medium $$n = \dfrac{c}{v}$$
My TBtextbook says absolute refractive index of a medium $n = \dfrac{c}{v}$, $$n = \dfrac{c}{v}$$
My TB says absolute refractive index of a medium $n = \dfrac{c}{v}$,
My TB says absolute refractive index of a medium $n = \dfrac{c}{v}$
