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Let "c" be the circle with centre at (1,...

Let "c" be the circle with centre at (1,1) and radius =1. If 'T' is the circle centred at (0,y) passing thorugh origin and touching the circle 'C' externally , then the radius of 'T' is equal to:

A

`(sqrt3)/( sqrt2) `

B

` (sqrt3)/(2)`

C

` (1)/(2) `

D

` (1)/(4)`

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Verified by Experts

The correct Answer is:
D
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