Two identical charged spheres suspended from a common point by two massless strings of length I are initially a distance x `(xltltl)` apart because of their mutual repulsion. The charge begins to leak from both the spheres at a constant rate. As a result the charges approach each other with a velocity v. Then as a function of distance x between them,

Options

A. `vpropx6(-1)`
B. `vpropx^(1//2)`
C. `vpropx`
D. `vpropx^-(1//2)`

Answer

D