Ultrasonic sound waves have relatively
A) low frequencies.
B) long wavelengths.
C) both of these
D) none of the above
Correct Answer:
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Q13: Sound waves cannot travel in
A)air.
B)water.
C)steel.
D)a vacuum.
Q50: The range of human hearing is about
A)10
Q51: Double the frequency of sound and you
Q52: A sound source of high frequency emits
Q53: The speed of sound varies with
A)loudness.
B)frequency.
C)wavelength.
D)all of
Q54: A 340-Hz sound wave travels at 340
Q56: For each 1-degree increase in temperature above
Q57: Sound travels faster when the air is
A)warm.
B)cold.
C)neither
Q58: Compressions and rarefactions of sound waves normally
Q59: Infrasonic sound waves have relatively
A)low frequencies.
B)long wavelengths.
C)both
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