Question

Which of the following best describes electromagnetic waves?

• A. Electromagnetic waves cause particles in a medium to vibrate
parallel to the direction of wave travel.
• B. Electromagnetic waves are produced by a disturbance in a
medium.
• C. Electromagnetic waves cause particles in a medium to vibrate
perpendicular to the direction of wave travel.
•
D. Electromagnetic waves are produced by a disturbance in electric a
and magnetic fields.

Answer 1

Electromagnetic waves are waves characterized by oscillating coupled electric and magnetic fields (electromagnetic fields). Because these are waves, they are shown to exhibit wave phenomena such as diffraction, reflection, and transmission, much like other types of waves.

The best description looks like option D