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# A pair of loudspeakers on two sides of a stage are

ISBN: 9780321909107 29

## Solution for problem 39E Chapter 20

Conceptual Physics | 12th Edition

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Conceptual Physics | 12th Edition

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Problem 39E

A pair of loudspeakers on two sides of a stage are emitting identical pure tones (tones of a fixed frequency and fixed wavelength in air). When you stand in the center aisle, equally distant from the two speakers, you hear the sound loud and clear. Why does the intensity of the sound diminish considerably when you step to one side? (? uggestion:? Use a diagram to make your point.)

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Solution 39E STEP 1: Here is an image of two waves coming from two opposite sides and reach the middle point where you are standing. Now you can hear the sounds very clearly because of the constructive interference by the two waves. As they are at the same distance from your position, their phase difference is zero and when they meet, they create constructive interference. By this the amplitude of the final wave gets increased and you hear a louder voice. The diagram of constructive interference of two waves of zero phase difference is shown below. The final amplitude is the sum of two individual amplitudes. So the sound you hear becomes very high and louder. STEP 2: When...

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##### ISBN: 9780321909107

This full solution covers the following key subjects: fixed, tones, Sound, loud, considerably. This expansive textbook survival guide covers 45 chapters, and 4650 solutions. This textbook survival guide was created for the textbook: Conceptual Physics, edition: 12. The answer to “A pair of loudspeakers on two sides of a stage are emitting identical pure tones (tones of a fixed frequency and fixed wavelength in air). When you stand in the center aisle, equally distant from the two speakers, you hear the sound loud and clear. Why does the intensity of the sound diminish considerably when you step to one side? (? uggestion:? Use a diagram to make your point.)” is broken down into a number of easy to follow steps, and 69 words. Since the solution to 39E from 20 chapter was answered, more than 407 students have viewed the full step-by-step answer. Conceptual Physics was written by and is associated to the ISBN: 9780321909107. The full step-by-step solution to problem: 39E from chapter: 20 was answered by , our top Physics solution expert on 04/03/17, 08:01AM.

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