In an electromagnetic wave in free space,the electric and magnetic fields are
A)parallel to one another and perpendicular to the direction of wave propagation.
B)parallel to one another and parallel to the direction of wave propagation.
C)perpendicular to one another and perpendicular to the direction of wave propagation.
D)perpendicular to one another and parallel to the direction of wave propagation.

Question

Quizplus · Accepted Answer

Electromagnetic waves are transverse waves, meaning that the oscillations of the electric and magnetic fields are perpendicular to the direction of wave propagation. Additionally, since the wave is self-sustaining, the oscillations of the electric and magnetic fields must also be perpendicular to each other. Therefore, choice C is correct. Choices A and D are incorrect because they suggest parallel electric and magnetic fields, which is not the case in an electromagnetic wave. Choice B is incorrect because it suggests that the fields are parallel to the direction of wave propagation, which is also not the case.

In an Electromagnetic Wave in Free Space,the Electric and Magnetic