A point `Q` lies on the perpendicular bisector of an electrical dipole of dipole moment `p`, If the distance of `Q` from the dipole is `r` (much larger than the size of the dipole), then electric field at `Q` is proportional to

Options

A. `p^(-1)` and `r^(-2)`
B. p and `r^(-2)`
C. `p^2` and `r^(-3)`
D. p and `r^(-3)`

Answer

D