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Two thin lenses of focal lengths f(1) an...

Two thin lenses of focal lengths `f_(1)` and `f_(2)` are in contact. The focal length of this combination is

A

`f_(1)+f_(2)`

B

`(f_(1)+f_(2))/2`

C

`(f_(1)f_(2))/f_(1)+f_(2)`

D

`sqrt(f_(1)f_(2))`

Text Solution

Verified by Experts

The correct Answer is:
C
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