question_answer

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 charges approach each other with a velocity v. Then as a function of distance x between them      

A)  \[v\,\,\propto \,\,{{x}^{1/2}}\] 

B)  \[v\,\,\propto \,\,{{x}^{-1}}\]

C)  \[v\,\,\propto \,\,{{x}^{1/2}}\] 

D)  \[v\,\,\propto \,\,x\]