Question

If the refractive index of second medium with respect to first medium is 2n1, and that of third medium with respect to second medium is 3n2 , what and how much is 3n1?


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Answer 1

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Answer 2

assuming all the mediums are placed next to each other on a plane.

Refractive index of the second medium with respect to first medium.

2n1 = n2/n1 -- 1

Refractive index of third medium with second medium.

3n2 = n3/n2 --2

We find out the refractive index of the 3rd medium

Multiply 1 and 2

2n1 x 3n2 = n2/n1 x n3/n2 = n3/n1