# Formation of real image using a biconvex lens is shown below If the whole set up is immersed in water without disturbing the object and the

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Formation of real image using a biconvex lens is shown below:

If the whole set up is immersed in water without disturbing the object and the screen position, what will one observe on the screen?

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The correct option is image disappers

Explainnation ::

$$from \space {1\over f}={(\mu_{rel}-1)}({{1\over R_1}-{1\over R_2}})$$

Focal length of lens will change hence image disappears from the screen