Assignment_5 spring 2012

# Speaker b is a distance l to the right of a consider

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Unformatted text preview: th the same amplitude, frequency f = 600 Hz, and phase. Speaker B is a distance L to the right of A. Consider a point Q a distance Δx to the right of the speakers and along the line connecting them. (a) Write an expression for the sound displacement amplitude s(x,t) at point Q in terms of the displacement amplitudes produced by each speaker, L and Δx. Assume that the amplitudes of the waves produced by each speaker remain constant as they propagate (not true, but ok for a first approximation.) (b) For what values of L will the waves from speakers A and B interfere destructively to produce a minimum amplitude at point P? (The resulting wave amplitude at P will be 0 for all times.) (c) For what values of L will the waves interfere constructively to produce a maximum amplitude at point P? (d) Interference effects like those in (a-c) are almost never a factor when listening to home stereo equipment. Why not? (Hint: do you listen to a single note?) Questions, Exercises and Problems from Y&F 12th Ed. for study and review: (Do not turn these in.) Volume 1, Chapter 15: Exercises 27, 28, 29, 30, 31, 32 Volume 1, Chapter 16: Exercises 22, 34, 36, 39, 40 Problem 70 Physics 2214, Spring 2012 4 Cornell University...
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## This note was uploaded on 02/27/2013 for the course PHY 2214 taught by Professor Davis during the Spring '12 term at Cornell University (Engineering School).

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