The electric intensity Eat a point on the axis ofa ring of radius a at a distance x from its centre is given by
`(1)/(4piepsi_(0))(qx)/((a^(2)+x^(2))^(3//2))`
where q is charge on ring.
An electron is constrained to move along the axis of this ring. Show that the electron can perform oscillations whose frequency is given by
`omega=((eq)/(4piepsi_(0)ma^(3)))^(1//3)`
Where e is the charge on electron: