Asked by hI sIsTeRs

Which of the following waves on the electromagnetic spectrum has the longest wavelength?
gamma rays
infrared waves
microwaves
X-rays
Answered by hI sIsTeRs
Which of the following waves on the electromagnetic spectrum has the highest frequency?
ultraviolet rays
x-rays
infrared waves
radio waves
Answered by hI sIsTeRs
Which statement is true for electromagnetic and mechanical waves?
Electromagnetic waves require a medium to travel, but mechanical waves do not need a medium
Electromagnetic waves travel mainly through matter, and mechanical travel only through a vacuum
Mechanical waves sometimes travel through a vacuum, and electromagnetic waves sometimes travel through matter
Mechanical waves require a medium to travel through, but electromagnetic waves do not need a medium
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