Consider a situation where a source is emitting a painfully high frequency sound and you want to reduce the observed frequency of the sound by a proportion p, where 0 ≤ ? ≤ 1. a. With what speed (as a function of the speed of sound, v) must an observer move away if the source is stationary to hear the sound with the desired reduced frequency? a) ?? = _____________________ b. With what speed (as a function of the speed of sound, v) must the source must move away from a stationary observer for the observer to hear the sound with the desired reduced frequency? b) ?? = _____________________ c. Which is more effective for reducing the frequency of the observed sound: having the observer move or having the source move? (Be sure to prove your answer mathematically.) c) Having the __________________________________________ move is more effective
Please provide details about your resolution process.
Please show complete, organized and correct work for each question. Questions without complete and clear work will earn no points. You’re welcome to use your textbook and notes, but no calculators.
Also in 2-C show your work mathematically without calculators)
Consider a situation where a source is emitting a painfully high frequency sound and you want to reduce the
observed frequency of the sound by a proportion p, where 0 ≤ ? ≤ 1.
a. With what speed (as a function of the speed of sound, v) must an observer move away if the source is stationary
to hear the sound with the desired reduced frequency?
a) ?? = _____________________
b. With what speed (as a function of the speed of sound, v) must the source must move away from a stationary
observer for the observer to hear the sound with the desired reduced frequency?
b) ?? = _____________________
c. Which is more effective for reducing the frequency of the observed sound: having the observer move or having
the source move? (Be sure to prove your answer mathematically.)
c) Having the __________________________________________ move is more effective
Given,
The speed of sound is
and the observed frequency is time the original frequency where .
a)
When the observer is moving away with a speed of .
Using Doppler's effect for this case,
Then observer speed will be
putting the values
Hence, the speed of the observer (moving away) is .
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