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Lens Maker's Formula

A convex lens...

Question

A convex lens is immersed in a liquid of refractive index greater than that of glass. It will behave as a

A

convergent lens

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B

divergent lens

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C

plane glass

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D

homogeneous liquid

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Solution

The correct option is B divergent lens
$\frac{1}{f} = (\frac{μ_{2}}{μ_{1}} - 1) (\frac{1}{R_{1}} - \frac{1}{R_{2}})$

As $\frac{μ_{2}}{μ_{1}} < 1$

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