Two identical loudspeakers are placed on a wall 3.00 m apart. A listener stands 5.00 m from the wall directly in front of one of the speakers. A single oscillator is driving the speakers at a frequency of 300 Hz. (a) What is the phase difference in radians between the waves from the speakers when they reach the observer? (Your answer should be between 0 and 27.) rad (b) What is the frequency closest to 300 Hz to which the oscillator may be adjusted such that the observer hears minimal sound? Hz

Two identical loudspeakers are placed on a wall 3.00 m apart. A listener stands 5.00 m from the wall directly in front of one of the speakers. A single oscillator is driving the speakers at a frequency of 300 Hz. (a) What is the phase difference in radians between the waves from the speakers when they reach the observer? (Your answer should be between 0 and 27.) rad (b) What is the frequency closest to 300 Hz to which the oscillator may be adjusted such that the observer hears minimal sound? Hz

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Interference of Light

The word "constructive" signifies addition in interference. Constructive interference occurs when the path of the waves that start from the slit differs by 1 entire wavelength or in the intervals of the same. Hence, the waves that are presented on the screen are in phase (crest to crest/trough to trough). The waves interfering constructively forms bright fringes on the screen.

Question

Two identical loudspeakers are placed on a wall 3.00 m apart. A listener stands 5.00 m from the wall directly in front of one of the
speakers. A single oscillator is driving the speakers at a frequency of 300 Hz.
(a) What is the phase difference in radians between the waves from the speakers when they reach the observer? (Your
answer should be between 0 and 2.7.)
rad
(b) What is the frequency closest to 300 Hz to which the oscillator may be adjusted such that the observer hears minimal
sound?
Hz

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Step 2: Find the wavelength of the sound wave:

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Step 3: a) Find the phase difference between the waves from the speakers when they reach the observer:

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Step 4: b) Find the frequency for minimal sound:

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