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Two straight rods of lengths 2a and 2b m...

Two straight rods of lengths 2a and 2b move along the coordinate axes in such a way that their extremities are always concyclic. Then the locus of the centres of such circles is

A

`2(x^2+y^2)=a^2+b^2`

B

`2(x^2-y^2)=a^2-b^2`

C

`x^2+y^2=a^2+b^2`

D

`x^2-y^2=a^2-b^2`

Text Solution

Verified by Experts

The correct Answer is:
D
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