SOLUTION: If a source of sound waves is rapidly approaching a person, the sound heard by the person appears to have A. a frequency higher than the original frequency. B. a period high

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Question 267617: If a source of sound waves is rapidly approaching a person, the sound heard by the person appears to have
A. a frequency higher than the original frequency.
B. a period higher than the original period.
C. an amplitude lower than the original amplitude.
D. a pitch lower than the original pitch.


Found 2 solutions by rfer, Alan3354:
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
C) the amplitude will decrease over distance.

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
A, due to the Doppler effect.
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B is not the answer, but it's poorly worded. The period would be longer or shorter (in this case shorter), or it would be greater or less. The period is a length, eg, 50 cm. Saying something is "higher than 50 cm" in length makes no sense.