Two identical speakers emit sound so that when a wave crest is emitted from one of them, the other also emits a wave crest. Another way of saying this is that the speakers are in phase with each other. A person is seated directly in front of one speaker as shown by the blue circle in the figure below. speakers (a) Which of the following statements regarding what the person will hear are true? Take n to be an integer. O For constructive interference, x₁ and x₂ must both be whole multiples of the wavelength (n*wavelength) O For constructive interference, x₁ and x₂ must both be half multiples of the wavelength (n*wavelength/2) 2 O For constructive interference, x₁ and x2 must differ by a whole multiple of the wavelength (n*wavelength) and for destructive interference, x₁ and x2 must differ by a whole multiple of the wavelength + half a wavelength (n+1/2)*wavelength (b) Consider the speaker set-up in the previous question. Each speaker emits a frequency of 6.6 102 Hz in phase with the other. The listener is seated directly in front of one speaker. 1.6 m away. The speakers are 2.4 m away from each other. How many extra wavelengths are needed for sound to get from speaker 2 to the listener? Take the speed of sound in air to be 3-4-10² m/s. Extra wavelengths x₁-x2|/A: (c) What kind of interference, if any, does the listener in the previous question experience? O There is not enough information to tell O Destructive interference O Constructive interference O No interference
Two identical speakers emit sound so that when a wave crest is emitted from one of them, the other also emits a wave crest. Another way of saying this is that the speakers are in phase with each other. A person is seated directly in front of one speaker as shown by the blue circle in the figure below. speakers (a) Which of the following statements regarding what the person will hear are true? Take n to be an integer. O For constructive interference, x₁ and x₂ must both be whole multiples of the wavelength (n*wavelength) O For constructive interference, x₁ and x₂ must both be half multiples of the wavelength (n*wavelength/2) 2 O For constructive interference, x₁ and x2 must differ by a whole multiple of the wavelength (n*wavelength) and for destructive interference, x₁ and x2 must differ by a whole multiple of the wavelength + half a wavelength (n+1/2)*wavelength (b) Consider the speaker set-up in the previous question. Each speaker emits a frequency of 6.6 102 Hz in phase with the other. The listener is seated directly in front of one speaker. 1.6 m away. The speakers are 2.4 m away from each other. How many extra wavelengths are needed for sound to get from speaker 2 to the listener? Take the speed of sound in air to be 3-4-10² m/s. Extra wavelengths x₁-x2|/A: (c) What kind of interference, if any, does the listener in the previous question experience? O There is not enough information to tell O Destructive interference O Constructive interference O No interference
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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