The electric field in an electromagnetic wave is given as \(\vec{\mathrm{E}}=20\sin \omega \left(\mathrm{t}-\frac{\mathr…

The electric field in an electromagnetic wave is given as \(\vec{\mathrm{E}}=20\sin \omega \left(\mathrm{t}-\frac{\mathrm{x}}{\mathrm{c}}\right)\overset{^}{j}N/C\) Where \(\omega\) and c are angular frequency and velocity of electromagnetic wave respectively. The energy contained in a volume of \(5\times {10}^{-4}{\mathrm{m}}^{3}\) will be (Given \({\epsilon }_{0}=8.85\times {10}^{-12}{\mathrm{C}}^{2}/{\mathrm{Nm}}^{2}\) )