An isotropic point source of sound S emits sound waves with a wavelength of 0.85 m. Beam 1 is directed directly to detector D at a distance of L = 10 m. Beam 2 arrives at the detector after bouncing off the surface as shown in the figure. The reflection causes the phase shift of the wave by 0.5 λ. Determine the smallest (non-zero) distance d so that both waves arrive at the detector (a) with opposite phase, (b) with the same phase.
An isotropic point source of sound S emits sound waves with a wavelength of 0.85 m. Beam 1 is directed directly to detector D at a distance of L = 10 m. Beam 2 arrives at the detector after bouncing off the surface as shown in the figure. The reflection causes the phase shift of the wave by 0.5 λ. Determine the smallest (non-zero) distance d so that both waves arrive at the detector (a) with opposite phase, (b) with the same phase.
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An isotropic point source of sound S emits sound waves with a wavelength of 0.85 m. Beam 1 is directed directly to detector D at a distance of L = 10 m.
Beam 2 arrives at the detector after bouncing off the surface as shown in the figure. The reflection causes the phase shift of the wave by 0.5
λ.
Determine the smallest (non-zero) distance d so that both waves arrive at the detector
(a) with opposite phase,
(b) with the same phase.
Transcribed Image Text:S
Ray 2
L
2
Ray 1
L
2
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