The electric field of an electric dipole at a point on its axis, at a distance $d$ from the centre of the dipole, varies as

• A

  $\frac{1}{d}$
• B

  $\frac{1}{d^2}$
• Correct answer
  C

  $\frac{1}{d^3}$
• D

  $\frac{1}{d^{\frac{3}{2}}}$

Hence, the correct answer is option: 'C'.