Infrared waves are often called heat waves because they
A) emanate from relatively hot sources.
B) consist of frequencies lower than those of visible light.
C) induce resonance of molecules in the skin that becomes thermal energy.
D) are absorbed rather than reflected by the skin.
E) are the predominant waves emitted by the Sun.
Correct Answer:
Verified
Q19: The main difference between a radio wave
Q20: The source of electromagnetic waves is vibrating
A)electric
Q21: Electrons in glass have a natural frequency
Q22: Relative to ultraviolet waves,the wavelength of infrared
Q23: When ultraviolet light is incident upon glass,most
Q25: Relative to its average speed in air,the
Q26: Non-reflected ultraviolet light that shines on a
Q27: Radio waves travel
A)always much faster than sound
Q28: Compared with the speed of light in
Q29: If a light signal and a radio
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