An electric dipole is placed along the x-axis at the origin O. A point P is at a distance of 20 cm from this origin such that OP makes an angle T/3 with the x-axis. If the electric field at P makes an angle 0 with the x-axis, the value of 0 would be
Options:
(a) `pi/3`
(b) `pi/3+tan^(-1) (sqrt3/2)`
(c) `(2pi)/3`
(d) `tan^(-1) (sqrt3/2)`