A pair of speakers separated by .700 m are driven by the sameoscillator at a frequency of 690 Hz. An observer originallypositioned at one of the speak

asked 2021-05-09
A pair of speakers separated by .700 m are driven by the sameoscillator at a frequency of 690 Hz. An observer originallypositioned at one of the speakers begins to walk along a lineperpendicular to the line joining the speakers.
a. How far must the observer walk before reaching a relativemaximum in intensity?
b. How far will the observer be from the speaker when the firstrelative minimum is detected in the intensity?

Answers (1)

the wavelength of the sound will be
a) for the first relative maximum we get
from the figure using the pythagorous theorem we get
b) for the first relative minimum we get
from the figure using the pythagoroustheorem we get
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