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A person's far point is at 2 m. Find nat...

A person's far point is at `2 m`. Find nature, focal length and power of the lens he must use to see distant objects clearly.

Text Solution

Verified by Experts

Here, the distance of far point, `x = 2 m`.
This defect can be corrected by using a concave lens of focal length
`f = -x = -2 m`
`P = (1)/(f) = (1)/(-2) Diaptre = - 0.5 D`.
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