Question

Which of the following types of waves is not part of the electromagnetic spectrum?

A) microwaves
B) gamma rays
C) ultraviolet radiation
D) radio waves
E) sound waves

Answer 1

Answer: Sound Waves

Explanation:

Sound waves are the only waves on this list that are not part of the electromagnetic spectrum. This is because sound waves require a medium to travel (molecules to transmit the sound waves), while waves on the electromagnetic spectrum do not require a medium. They are able to travel through space for example, while sound would not be able to.

Answer 2

Sound waves (E) are not electromagnetic at all.

Microwaves, gamma rays, ultraviolet waves, and radio waves all are.