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The focal chords of the parabola y^(2)=1...

The focal chords of the parabola `y^(2)=16x` which are tangent to the circle of radius r and centre (6, 0) are perpendicular, then the radius r of the circle is

A

units

B

`sqrt2` units

C

1 units

D

`(1)/(2)` units

Text Solution

Verified by Experts

The correct Answer is:
B
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