Select the correct statement from the following
Electromagnetic waves cannot travel in vacuum
Electromagnetic waves are longitudinal waves
Electromagnetic waves are produced by charges moving with uniform velocity
Electromagnetic waves carry both energy and momentum as they propagate through space
Energy stored in electromagnetic oscillations is in the form of
A plane electromagnetic wave of angular frequency $\omega$ propagates in a poorly conducting medium of conductivity $\sigma$ and relative permittivity $\varepsilon$. Find the ratio of conduction current density and displacement current density in the medium.
The energy associated with electric field is $(U_E)$ and with magnetic field is $(U_B)$ for an electromagnetic wave in free space. Then
A plane electromagnetic wave of wavelength $\lambda $ has an intensity $I.$ It is propagating along the positive $Y-$ direction. The allowed expressions for the electric and magnetic fields are given by
Equation of light wave, normally incident on a surface is $B = \left( {100nT} \right)\sin (2\pi ({10^{15}}t - \left( {3 \times {{10}^{ - 7}}} \right)x) + \frac{\pi }{6})$ .Find intensity of light on that surface ...$W/m^2$