In this problem, we'll consider the equation:

$\overline{){\mathbf{S}}{\mathbf{=}}\frac{\mathbf{1}}{{\mathbf{\mu}}_{\mathbf{0}}}{\mathbf{E}}{\mathbf{\times}}{\mathbf{B}}}$, where S is the vector describing the rate of energy transport per unit area, E is the electric field, and B is the magnetic field.

**Part A**

Using the equation:

$\begin{array}{rcl}\mathbf{S}& \mathbf{=}& \frac{\mathbf{1}}{{\mathbf{\mu}}_{\mathbf{0}}}\mathbf{E}\mathbf{\times}\mathbf{B}\\ & \mathbf{=}& \mathbf{i}\mathbf{\times}\mathbf{j}\\ & \mathbf{=}& \mathbf{k}\end{array}$

Part A. In what direction is the electromagnetic wave traveling in the figure (Figure 1)a?

Part B. In what direction is the electromagnetic wave traveling in the figure (Figure 2)b?

Part C. Rank these electromagnetic waves on the basis of their speed (in vacuum). Rank from fastest to slowest. To rank items ad equivalent, overlap them.

Part D. Rank these electromagnetic waves on the basis of their wavelength. Rank from longest to shortest. To rank items ad equivalent, overlap them.

Part E. Rank these electromagnetic waves on the basis of their frequency. Rank from largest to smallest. To rank items ad equivalent, overlap them.

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Energy Carried by Electromagnetic Waves concept. You can view video lessons to learn Energy Carried by Electromagnetic Waves. Or if you need more Energy Carried by Electromagnetic Waves practice, you can also practice Energy Carried by Electromagnetic Waves practice problems.