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A magnifying glass is made of a combinat...

A magnifying glass is made of a combination of a convergent lens of power 20D and divergent lens of power 4D. If the least distance of distinct vision is 25cm. The magnifying power is

A

7

B

5

C

3

D

4

Text Solution

Verified by Experts

The correct Answer is:
B
`P=p_(1) + p_(2), M=1+D/f`
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