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  3. 1 an electromagnetic wave with the following electric field is...

Question: 1 an electromagnetic wave with the following electric field is...

Question details

1. An electromagnetic wave with the following electric field is propagating in a plasma medium characterized by the dispersion relation kx10, where w is the frequency in rad/s, and c the speed of light in free-space.
In which direction is the wave propagation and what is the wavevector k? What is the polarization of the wave for an observer looking at the electromagnetic wave coming? And for an observer looking at the electromagnetic wave moving away?
(h) If 10 rad/s, what are the values of k and the phase velocity vp and group velocity Vg? lf (o-V3π x106 rad/s, what is the value of k and what is the expression for E? If ω_V3xx10° rad/s, what is the value of the group velocity vg and the time-averaged Poynting vector power density?
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