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Asked by  | 26th Apr, 2008, 09:23: PM

Expert Answer:

Refractive index of medium 2 with respect to medium 1 is n21 = n2/n1

or,  Refractive index of medium 1 with respect to medium 2 is n12 = n1/n2

Rgds

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Answered by  | 23rd May, 2008, 12:25: PM

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