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The circles having radii r(1) and r(2) i...

The circles having radii `r_(1)` and `r_(2)` intersect orthogonally. The length of their common chord is

A

`( 2r_(1)r_(2))/( sqrt(r_(1)^(2)+r_(2)^(2)))`

B

`( 2r_(1)^(2)r_(2))/( sqrt(r_(1)^(2)+r_(2)^(2)))`

C

`( r_(1)^(2)r_(2))/( sqrt(r_(1)^(2)+r_(2)^(2)))`

D

`( 2r_(2)^(2)r_(1))/( sqrt(r_(1)^(2)+r_(2)^(2)))`

Text Solution

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The correct Answer is:
a
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