The acoustical system shown in the figure below is driven by a speaker emitting sound of frequency 859 Hz. (Use v = 343 m/s.) Sliding section Speaker Receiver Ⓡ (a) If constructive interference occurs at a particular instant, by what minimum amount should the path length in the upper U-shaped tube be increased so that destructive interference occurs instead? m (b) What minimum increase in the original length of the upper tube will again result in constructive interference? m

The acoustical system shown in the figure below is driven by a speaker emitting sound of frequency 859 Hz. (Use v = 343 m/s.) Sliding section Speaker Receiver Ⓡ (a) If constructive interference occurs at a particular instant, by what minimum amount should the path length in the upper U-shaped tube be increased so that destructive interference occurs instead? m (b) What minimum increase in the original length of the upper tube will again result in constructive interference? m

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter14: Superposition And Standing Waves

Section: Chapter Questions

Problem 10P

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