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A person uses a lens of power +3D to nor...

A person uses a lens of power `+3D` to normalise vision. Near point of hypermetropic eye is

A

`1m`

B

`1.66m`

C

`2m`

D

`0.66m`

Text Solution

Verified by Experts

The correct Answer is:
A
Focal length of the lens `f=(100)/(3)cm`
By lens formula`(1)/(f)=(1)/(v)-(1)/(u)`
`implies(1)/(+100//3)=(1)/(v)-(1)/(-25)`
`impliesv=-100cm=-1m`
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