A red LED emits light at $0.1$ watt uniformly around it. The amplitude of the electric field of the light at a distance of 1m from the dipole is :

Question

$\begin{array}{1 1} 2.45\;V/m \\ 5.48\;V/m \\ 7.75\;V/m \\ 1.73 V/m \end{array} $