Question

which of the following describes a difference between electromagnetic and mechanical waves?

a only mechanical waves have long wavelengths

b only mechanical waves require a medium to travel

c only electromagnetic waves have a range of frequencies

d only electromagnetic waves transfer energy from one place to another

Answer 1

Answer:

B. only mechanical waves require a medium to travel.

Explanation:

The main difference between mechanical and electromagnetic waves is that electromagnetic waves do not require a medium to propagate whereas mechanical waves require a medium in order to propagate.