Two identical charged spheres suspended from a common point by two massless strings of length l are initially a distance `d (d << l )` apart because of their mutual repulsion. The charge begins to leak from both the spheres at a constant rate. As a result the spheres approach each other with a velocity υ . Then function of distance x between them becomes ...........
Options:
(a) `valpha x`
(b) `valpha x^(-1/2)`
(c) `valpha x^(-1)`
(d) `valpha x^(1/2)`