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Two thin lenses of focal length f(1) and...

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

A

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

B

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

C

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

D

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

Text Solution

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The correct Answer is:
A
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