Which of the following cannot travel in a vacuum?
A) a light wave
B) a sound wave
C) a radio wave
D) all can
E) none can
Correct Answer:
Verified
Q27: Which best shields you from sunburn when
Q28: Glass is transparent to wave frequencies that
A)match
Q29: Sunburns are produced by
A)infrared light.
B)visible light.
C)ultraviolet light.
D)all
Q30: What is the wavelength of an electromagnetic
Q31: If an electron vibrates up and down
Q33: When ultraviolet light is incident upon glass,
Q34: A main difference between a radio wave
Q35: When visible light is incident upon clear
Q36: The speed of light in the void
Q37: What is the frequency of an electromagnetic
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