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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))/( 2 )`

B

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

C

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

D

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

Text Solution

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The correct Answer is:
B
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