The time period of revolution of a charge `q_1` and of mass m moving in a circular path of radius due to Coulomb force of attraction with another charge `q_2,` at its centre is

Options

A. a) `sqrt((16 pi epsi_(0) mr^(3))/(q_(1)q_(2)))`
B. b) `sqrt((8pi^(2) epsi_(0) mr^(3))/(q_(1)q_(2)))`
C. c) `sqrt((epsi_(0) mr^(3))/(16 q_(1)q_(2)))`
D. d) `sqrt((16pi^(3) epsi_(0) mr^(3))/(q_(1)q_(2)))`

Answer

D