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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

$\begin{array}{1 1}(A)\;\large\frac{\sqrt 3}{\sqrt 2}\\(B)\;\large\frac{\sqrt 3}{2}\\(C)\;\large\frac{1}{2}\\(D)\;\large\frac{1}{4}\end{array} $

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Radius of T is equal to $\large\frac{1}{4}$
Hence (D) is the correct answer.
answered Apr 7, 2014 by sreemathi.v

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