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mam; can you explain the refractive index has no unit

Asked by Pawan chhipa 16th March 2013, 7:54 PM
Answered by 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 Expert 18th March 2013, 12:38 AM
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