An electromagnetic plane wave has an electric field that is parallel to the y axis, and has a Poynting vector given by (x, t) = (110 W/m^2) cos2(kx - ωt)î where x is in meters, k = 14.0 rad/m, ω = 4.20 x10^9 rad/s, and t is in seconds.
a. What is the direction of propagation of the wave?
b. Find the wavelength and the frequency of the wave.
c. Find the electric and magnetic fields of the wave as functions of x and t.
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An electromagnetic plane wave has an electric field that is parallel to the y axis, and has a Poynti...
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