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Two convex lenses of focal length f1 and...

Two convex lenses of focal length `f_1` and `f_2` are mounted coaxially separated by a distance. If the power of the combination is zero, the distance between the lenses is

A

`d=(f_(1)+f_(2))`

B

`d=(f_(1)-f_(2))`

C

`d=sqrt(f_(1)f_(2))`

D

`d=((f_(1)-f_(2)))/(2)`

Text Solution

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The correct Answer is:
A
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