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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
Options
= x
< x
> x
= 2 x
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Solution
= x
For a normal eye, we have:
Far point at which the object can be placed, u=∞
Distance between the eye lens and the retina, v=x
Thus, we have:
`1/f = 1/v-1/u`
`=> 1/f =1/x -1/∞`
⇒ f=x
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