In an electomegnetic wave, the amplitude of electric field is `10V//m`. The frequency of wave is
`5xx10^14Hz`. The wave is propagating along Z-axis, find (i) the average
energy density of electric field (ii) the average energy density of
magnetic field (iii) the total average energy density of e.m. wave.

Options

A. `2.21xx10^(-10) J//m^(3)`
B. `2.21xx10^(-8) J//m^(3)`
C. `2xx10^(-8) J//m^(3)`
D. `2xx10^(-10) J//m^(3)`