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2014-11-17T19:02:10+05:30

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Refractive index is the ratio of speed of light in vacuum to that of in a medium. Since it is a ratio of two similar quantities, it is dimensionless. So it has no unit.
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  • Brainly User
2014-11-17T19:12:00+05:30
NO the refractive index have no units. IT IS JUST THE RATIO OF THE SPEED OF THE LIGHT IN TWO DIFFERENT MEDIA.
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its a ratio and hence there's no unit at all !!!