PLEASE ANSWER
Which of the following statements about electromagnetic and mechanical wav...
PLEASE ANSWER
Which of the following statements about electromagnetic and mechanical waves is true?
A. Electromagnetic waves must travel through a medium, but mechanical waves do not require a medium.
B. Mechanical waves must travel through a medium, but electromagnetic waves do not require a medium.
C. Mechanical waves sometimes travel through a vacuum, and electromagnetic waves sometimes travel through matter.
D. Electromagnetic waves travel mostly through matter, and mechanical waves travel mostly through a vacuum.
Answers: 2
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