There are two loudspeakers 3.0 m apart and both are playing a 686 Hz tone in phase. The speed of sound is 343 m/s. A person is standing directly in front of one of the two loudspeakers as shown in the figure and can only move along a line AB. a) Write the inherent phase difference. b) Write the pathlength difference in terms of x, which is a distance from the speaker 1 to the person. c) At what distances x (calculate three values corresponding to integers m=0,1,2) from the speaker 1 do you hear a minimum sound intensity?
Interference of sound
Seiche
A seiche is an oscillating standing wave in a body of water. The term seiche pronounced saysh) can be understood by the sloshing of water back and forth in a swimming pool. The same phenomenon happens on a much larger scale in vast bodies of water including bays and lakes. A seizure can happen in any enclosed or semi-enclosed body of water.
There are two loudspeakers 3.0 m apart and both are playing a 686 Hz tone in phase.
The speed of sound is 343 m/s. A person is standing directly in front of one of the
two loudspeakers as shown in the figure and can only move along a line AB.
a) Write the inherent phase difference.
b) Write the pathlength difference in terms of x, which is a distance from the
speaker 1 to the person.
c) At what distances x (calculate three values corresponding to integers
m=0,1,2) from the speaker 1 do you hear a minimum sound intensity?
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