Physics - EM Waves Question with Solution | TestHub

If$E_0$is the amplitude of the electric field then the intensity of the electromagnetic wave is given as$I=\frac{1}{2}{\epsilon }_0{E}_0^2\times c$. From the above relation, we get$E_0= \sqrt{\frac{2 I}{c {\epsilon }_0}}$. The relation between electric and magnetic fields is$B_0= \frac{E_0}{c}$. The direction of$\overrightarrow{E}\times \overrightarrow{B}$will be along$+\widehat{j}$.