InFig. 17-44, sound waves A and B, both of wavelength λ, areinitially in phase and traveling rightward, as indicated by the tworays. Wave A is reflected from four surfaces but ends up travelingin its original direction. What multiple of wavelength λ is thesmallest value of distance L in the figure that puts A and Bexactly out of phase with each other after the reflections?
In Fig. 17-44, sound waves A and B, both of wavelength ?, are initially in phase and traveling rightward, as indicated by the two rays. Wave A is reflected from four surfaces but ends up traveling in its original direction. What multiple of wavelength ? is the smallest value of distance L in the figure that puts A and B exactly out of phase with each other after the reflections?
