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Ankit developed an eye defect at the age...

Ankit developed an eye defect at the age of 65 yrs and had to wear a lens of power +3D. Find the focal length of the lens

Text Solution

Verified by Experts

`P=+3D`
`f=1/P`
`=1/3`
` = 0.33" m" `
`therefore " focal length = 0.33 metre" `
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