Question

No sloppy writing, please! I want to be able to see and understand each step. Thank you!

A sinusoidal electromagnetic planar wave propagates in a non-magnetic material with an insulation constant of 2.3. The unit vector (4i - 3j) / 5 indicates the direction of wave propagation. The amplitude of the electric field of the wave is 1.8 kV / m and the direction of the field is −k? vector at a certain time. In which direction (= unit vector) does the magnetic field of the wave point at the same moment and what is the amplitude of the field? What is the frequency of the wavelength when the wavelength is 38 mm?

Answer 1