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Question

Find the refractive index of glass with respect to water.
The refractive index of glass with respect to air is 32 and the refractive index of water with respect to air is 43 respectively.

A
89
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B
49
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C
94
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D
98
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Solution

The correct option is D 98
We have, n21=n2n1.Here, glass is the second medium.
Here, n2=32,n1=43
So, n21=98

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