mam; can you explain the refractive index has no unit

Asked by Pawan chhipa | 16th Mar, 2013, 07:54: PM

Expert Answer:

refractive index is actully a ratio of speed of light in free space to speed of light in that medium.
Since it is a ratio, hence it is dimensionless.

Answered by  | 18th Mar, 2013, 12:38: AM

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