Which of the following is a TRUE statement about the differences between electromagnetic and mechanical waves?
A
Electromagnetic waves are caused by vibration of particles and mechanical waves are caused by frequency, not amplitude.
B
Electromagnetic waves are considered a periodic disturbance and mechanical waves are considered a disturbance.
C
Electromagnetic waves require a medium to travel in and mechanical waves do not require a medium.
D
Electromagnetic waves travel in a vacuum and mechanical waves do not travel in a vacuum.
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