How are amplitudes of electric and magnetic fields related in E.M. waves? Name the electromagnetic radiation used for viewing object through fog. What is their wavelength range?

A capacitor is made of two circular plates each of radius $15 \mathrm{cm}$ and separated by $5.0 \mathrm{mm}$. The capacitor is charged by a constant current of $0.23$ A. Obtain displacement current across the plates given $\frac{dV}{dt}=1.87\times {10}^9 \mathrm{V} {\mathrm{s}}^{-1}$.

(a) How does a charge, $q$ oscillating at a certain frequency produce electromagnetic waves? Sketch a schematic diagram depicting, $\overrightarrow{E}$ and $\overrightarrow{B}$ of an electromagnetic wave propagating along $x$-axis. (b) The amplitude of the magnetic field part of a harmonic electromagnetic wave in a vacuum is, $B_0=510 \mathrm{nT}$. What is amplitude of electric field part of the wave?