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A certain myopic person has a far point ...

A certain myopic person has a far point of 150 cm.
If he is able to read a book at 25 cm while wearing the glasses, is his near point less than 25 cm ?

Text Solution

Verified by Experts

He is able to read a book at 25 cm while wearing the glasses.
`:.u= -25 cm, f= -150cm`
As `-(1)/(u)+(1)/(v)=(1)/(f)`
`-(1)/(-25)+(1)/(v)=(1)/(-150)`
`(1)/(v)= -(1)/(150) -(1)/(25)=(-1-6)/(150)=(-7)/(150)`
`rArr v= -(150)/(7)= -21.43cm`
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