A Lens Behaves As A Converging Lens In Air And A Diverging Lens In Water. The Refractive Index Of The Material Is:

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Question

A lens behaves as a converging lens in air and a diverging lens in water. The refractive index of the material is:

Solution

Correct option is

Between unity and 1.33

 

 

As f is negative in water, so μ2 < μ1 (= 1.33 for water).

Hence, μ2 lies between 1 and 1.33.

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