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CBSE Class 12-science Answered

mam; can you explain the refractive index has no unit
Asked by Pawan chhipa | 16 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 | 18 Mar, 2013, 12:38: AM
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