r-axis. The figure below shows four identical point sources of sound that are uniformly spaced on an S₁ ← d Sq S3 1+d+ S4 The sources emit sound at the same wavelength A and same amplitude A, and they emit in phase. A point P is shown on the x axis. Assume that as the sound waves travel to P, the decrease in their amplitude is negligible. What multiple of A is the amplitude of the net wave at P if distance d in the figure is (a) X/4, (b) A/2, and (c) X?
r-axis. The figure below shows four identical point sources of sound that are uniformly spaced on an S₁ ← d Sq S3 1+d+ S4 The sources emit sound at the same wavelength A and same amplitude A, and they emit in phase. A point P is shown on the x axis. Assume that as the sound waves travel to P, the decrease in their amplitude is negligible. What multiple of A is the amplitude of the net wave at P if distance d in the figure is (a) X/4, (b) A/2, and (c) X?
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Transcribed Image Text:x-axis.
The figure below shows four identical point sources of sound that are uniformly spaced on an
S₁
Sq
S3
ddd
S4
P
The sources emit sound at the same wavelength A and same amplitude A, and they emit in phase. A point
P is shown on the x axis. Assume that as the sound waves travel to P, the decrease in their amplitude is
negligible. What multiple of A is the amplitude of the net wave at P if distance d in the figure is (a) X/4,
(b) A/2, and (c) X?
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