By Doppler effect, one hears high pitch of an approaching sound and notices that the pitch drops suddenly as the sound passes.
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 pitch lower than the original pitch.
C. an amplitude lower than the original amplitude.
D. a period higher than the original period.
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Sound Waves concept. You can view video lessons to learn Sound Waves. Or if you need more Sound Waves practice, you can also practice Sound Waves practice problems.