Question

The simplest form of a traveling electromagnetic wave is a plane wave. For a wave traveling in the x-direction whose electric field is in the y-direction, the electric and magnetic fields are given by the picture shown above. This wave is linearly polarized in the y-direction.

1. In these formulas, it is useful to understand which variables are parameters that specify the nature of the wave. The variables and  are the __________ of the electric and magnetic fields.

a. maximas

b. wavelengths

c. amplitudes.

d. velocities

2. The variable  is called the __________ of the wave.

a. wavenumber

b. wavelength

c. velocity

d. frequency