The points and are the endpoints of a diameter of a sphere

MATHEMATICS · Single correct · CBSE · Mathematics · Introduction to Three-Dimensional Geometry · Introduction to Three-Dimensional Geometry

Problem

The points

P(2,-1,4)

and

Q(6,3,-4)

are the endpoints of a diameter of a sphere. Find the length of the radius of the sphere. (a)

4\sqrt{6}

(b)

2\sqrt{2}

(c)

2\sqrt{6}

(d)

6