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The diagram below shows a spherical lens...

The diagram below shows a spherical lens in which the image obtained is highly magnified and has a power of 4.0 D. With reference to this answer the following questions:

The focal length of lens is :

A

100cm

B

25cm

C

0.25m

D

both 2 and 3

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Verified by Experts

The correct Answer is:
D
lens with positive power is convex
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