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Question

The distance of the eye-lens from the retina is $$x$$. For a normal eye, the maximum focal length of the eye-lens


A
=x
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B
<x
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C
>x
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D
=2x
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Solution

The correct option is A $$= x$$

Focal length of normal eye lens is equal to the distance between eye-lens and retina i.e, $$x$$  so that all rays converges on retina after passing through  eye-lens, thus option $$A$$ is correct.

Physics

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