Suppose
that the electric field part of an electromagnetic wave in vacuum is
E =
{(3.1 N/C) cos [(1.8 rad/m) y +
(5.4 × 106
rad/s)t]}
.
(a) What is the direction of propagation?
(b) What is the wavelength λ?
(c) What is the frequency ν?
(d) What is the amplitude of the magnetic field part of the wave?
(e) Write an expression for the magnetic field part of the wave.