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For a normal eye, the cornea of eye prov...

For a normal eye, the cornea of eye provides a converging power of `40 D` and the least converging power of the eye lens behind the cornea is `20 D`. Using this information, the distance between the retina and the cornea eye lens can be estimated to be

A

`5 cm`

B

`2.5cm`

C

`1.67cm`

D

`1.5 cm`

Text Solution

Verified by Experts

The correct Answer is:
C
`P_(eff)=40D+20D=60D`
`f=(100)/(P_(eff))`
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