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>> $A converging lens of focal length 6.25 c$

Question

A converging lens of focal length 6.25 cm is used as a magnifying glass. If near point of the observer is 25 cm from the eye and the lens is held close to the eye, then the magnification is :

A

4

B

5

C

8

D

10

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Updated on : 2022-09-05

Solution

Verified by Toppr

Correct option is B)

As magnification $m = 1 + \frac{D}{f}$

$⟹$ $m = 1 + \frac{2 5}{6 . 2 5}$

$⟹$ $m = 5$

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