Two circle of equal radii are intersect at `(0,1) and (0,1)`, and the tangent at `(0,1)` to one of those passes through the centre of other. Then the distance between the centres is equal to (A) `2c` (B) `sqrt2` (C) `1/sqrt2` (D) `1/2`

Two circles with equal radii are intersecting at the points (0, 1) and (0,-1). The tangent at the point (0,1) to one of the circles passes through the centre of the other circle. Then the distance between the centres of these circles is.

Two circles with equal radii are intersecting at the points (1,0) and (-1,0) . Then tangent at the point (1,0) to one of the circles passes through the centre of the other circle.Then the distance between the centres of these circles is:

IF two circles of radii r_1 and r_2 (r_2gtr_1) touch internally , then the distance between their centres will be

10.Let C be the circle with centre at (1,1) and radius 1 If Tis the circle centred at (0, y) passing through origin and touching the circle C externally,then the radius of T is equal to V3 (a) 4

Two equal circles of radius r intersect such that each passes through the centre of the other.The length of the common chord of the circles is sqrt(r)(b)sqrt(2)rAB(c)sqrt(3)r(d)(sqrt(3))/(2)r

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

The common chord of two intersecting circdes C_(1), and C_(2) can be seen from their centres at the angles of 90^(@)&60^(@) respectively.If the distance between their centres is equal sqrt(3)+1 then the radii of C_(1) and C_(2) are -(A)sqrt(3) and 3(B)sqrt(2) and 2sqrt(2)(C)sqrt(2) and 2(D)2sqrt(2) and 4

The curve xy=c,(c>0), and the circle x^(2)+y^(2)=1 touch at two points.Then the distance between the point of contacts is 1 (b) 2(c)2sqrt(2)quad (d) none of these