If the chord of contact of tangents from a point `P` to a given circle passes through `Q ,` then the circle on `P Q` as diameter. cuts the given circle orthogonally touches the given circle externally touches the given circle internally none of these

If the chord of contact of tangents from a point P to a given circle passes through Q, then the circle on PQ as diameter.cuts the given circle orthogonally touches the given circle externally touches the given circle none of these

If the chord of contact of tangents from a point P to a given circle passes through Q , then the circle on P Q as diameter. (a)cuts the given circle orthogonally (b)touches the given circle externally (c)touches the given circle internally (d)none of these

Locus of the centre of a circle which touches given circle externally is :

The locus of the centre of a circle the touches the given circle externally is a _______

The locus of the centre of a circle the touches the given circle externally is a _______

The locus of the centre of a circle the touches the given circle externally is a _______

The locus of the centre of a circle the touches the given circle externally is a _______

The chord of contact of tangents from a point P to a circle passes through Q, If l_1 and l_2 are the lengths of tangents from P and Q to the circle, then PQ is equal to :