show an electric dipole formed by two
. particles fixed at the ends of a light rod of length l. The
. mass of each particle is m and the charges are -q and
. +q . The system is placed in such a way that the dipole
. axis is parallel to a uniform electric field E that exist
. in the region. The dipole is slightly rotated abut its
. centre and released. Show that for small angular
. displacement, the motion is anguler simple harmonic
. and find its time period.

Options

A. `(1)/(2pi) sqrt((2qE)/(ml))`
B. `2pi sqrt((ml)/(qE))`
C. `2pi sqrt((ml)/(2qE))`
D. `(1)/(2) sqrt((ml)/(4qE))`

Answer

C