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30 Jan 2012 15:27:57 IST
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unit of refractive index
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30 Jan 2012 15:41:45 IST
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it has no unit...its a ratio
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30 Jan 2012 19:16:26 IST
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no units
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30 Jan 2012 20:18:13 IST
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Refractive index is the ratio of speed of light in vacuum to that in the subject medium. Hence it is a dimensionless quantity and has no unit.
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30 Jan 2012 20:18:23 IST
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Since it is ratio of speed of light in a vacuum to the speed of light in the medium, therefore it is a dimensionless and unit less quantity.
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5 Feb 2012 13:52:18 IST
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it is only a ratio
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