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GO Figure 17-39 shows two point sources S1 and S2 that emit sound of wavelength λ = 2.00 m. The emissions are isotropic and in phase, and the separation between the sources is d = 16.0 m. At any point P on the x axis, the wave from S1 and the wave from S2 interfere. When P is very far away (x∞), what are (a) the phase difference between the arriving waves from S1 and S2 and (b) the type of interference they produce? Now move point P along the x axis toward S1. (c) Does the phase difference between the waves increase or decrease? At what distance x do the waves have a phase difference of (d) 0.50λ, (e) 1.00λ, and (f) 1.50λ?
Figure 17-39Problem 23.
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