Let C be the circle with centre at (1, 1...

Let C be the circle with centre at (1, 1) and radius = 1. If T is the circle centred at (0, y), passing through origin and touching the circle C externally, then the radius of T is equal to (1) `(sqrt(3))/(sqrt(2))` (2) `(sqrt(3))/2` (3) `1/2` (3) `1/4`

`1/2`

`1/4`

`sqrt3/sqrt2`

`sqrt3/2`

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