Two in-phase loudspeakers, A and B, are separated by 3.20 m. A listener is stationed at C, which is 2.40 m in front of speaker B. Both speakers are playing identical 214-Hz tones, and the speed of sound is 343 m/s. Does the listener hear a loud sound, or no sound?Someone move the speakers closer. If the Distance AB changes to be 3.00 meters and the Distance BC reminds the same (2.40 meters), what will be the minimum frequency that will produce Constructive Interference? Justify your answer with the calculationsIn the same situation as b) what will be the minimum frequency that will produce Destructive interference. Justify your answer with the calculations The subject moves to a position where Distance AC is equal to Distance BC. Draw the new situation Which frequencies will produce Constructive Interference in this situations – justify your answer. Which frequencies will produce Destructive interference in this situation ABDistance AB3.20 m90°2.40 mDistance BC

Given that: Loud speakers are in phase. f=214 Hz v=343 Hz

Answered: Two in-phase loudspeakers, A and B, are…

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

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Two in-phase loudspeakers, A and B, are separated by 3.20 m. A listener is stationed at C, which is 2.40 m in front of speaker B. Both speakers are playing identical 214-Hz tones, and the speed of sound is 343 m/s.

Does the listener hear a loud sound, or no sound?
Someone move the speakers closer. If the Distance AB changes to be 3.00 meters and the Distance BC reminds the same (2.40 meters), what will be the minimum frequency that will produce Constructive Interference? Justify your answer with the calculationsIn the same situation as b) what will be the minimum frequency that will produce Destructive interference. Justify your answer with the calculations
1. The subject moves to a position where Distance AC is equal to Distance BC.
1. Draw the new situation
1. Which frequencies will produce Constructive Interference in this situations – justify your answer.
1. Which frequencies will produce Destructive interference in this situation

A
B
Distance AB
3.20 m
90°
2.40 m
Distance BC

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