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At what distance from a biconvex lens of...

At what distance from a biconvex lens of the focal length F, must be placed an object for the distance between the object and its real image to be minimum ?

A

2F

B

F

C

`F/2`

D

`4F

Text Solution

Verified by Experts

The correct Answer is:
A

Minimum distance of an object and its. seal image is 4F. For this, object must be placed at distance 2F from lens.
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