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27. On a day when there is no wind, a loudspeaker S is placed at each goalpost at one end of a football field. The loudspeakers are in phase and are emitting sounds of the same constant frequency and intensity. The boys in a class are asked to find positions on the field where the sound is faintest and the girls to find positions where the sound is loudest. The positions taken are shown in the diagram below. Q Q 0 Q ♂ Q d dddd ರ S S ㅇ 어둠 Boy Girl Which student is at a position which best satisfies the conditions X = 3^? L 2d X = the distance from the student to the right bisector of the line joining the loudspeakers L = the distance of the student from the midpoint between the sources speakers A = the wavelength of the sound from the speakers d = the distance between the speakers (a) 2 (b) 4 (c) 5 (d) 6 (e) 7

27. On a day when there is no wind, a loudspeaker S is placed at each goalpost at one end of a football field. The loudspeakers are in phase and are emitting sounds of the same constant frequency and intensity. The boys in a class are asked to find positions on the field where the sound is faintest and the girls to find positions where the sound is loudest. The positions taken are shown in the diagram below. Q Q 0 Q ♂ Q d dddd ರ S S ㅇ 어둠 Boy Girl Which student is at a position which best satisfies the conditions X = 3^? L 2d X = the distance from the student to the right bisector of the line joining the loudspeakers L = the distance of the student from the midpoint between the sources speakers A = the wavelength of the sound from the speakers d = the distance between the speakers (a) 2 (b) 4 (c) 5 (d) 6 (e) 7

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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27. On a day when there is no wind, a loudspeaker S is placed at each goalpost at one end of a football field. The loudspeakers are in phase and are emitting sounds of the same constant frequency and intensity. The boys in a class are asked to find positions on the field where the sound is faintest and the girls to find positions where the sound is loudest. The positions taken are shown in the diagram below. Q Q 0 Q ♂ Q d dddd ರ S S ㅇ 어둠 Boy Girl Which student is at a position which best satisfies the conditions X = 3^? L 2d X = the distance from the student to the right bisector of the line joining the loudspeakers L = the distance of the student from the midpoint between the sources speakers A = the wavelength of the sound from the speakers d = the distance between the speakers (a) 2 (b) 4 (c) 5 (d) 6 (e) 7
Transcribed Image Text:27. On a day when there is no wind, a loudspeaker S is placed at each goalpost at one end of a football field. The loudspeakers are in phase and are emitting sounds of the same constant frequency and intensity. The boys in a class are asked to find positions on the field where the sound is faintest and the girls to find positions where the sound is loudest. The positions taken are shown in the diagram below. Q Q 0 Q ♂ Q d dddd ರ S S ㅇ 어둠 Boy Girl Which student is at a position which best satisfies the conditions X = 3^? L 2d X = the distance from the student to the right bisector of the line joining the loudspeakers L = the distance of the student from the midpoint between the sources speakers A = the wavelength of the sound from the speakers d = the distance between the speakers (a) 2 (b) 4 (c) 5 (d) 6 (e) 7
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