Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)
Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)
1st Edition
ISBN: 9780078945830
Author: Charles William McLaughlin, Marilyn Thompson, Dinah Zike
Publisher: Glencoe Mcgraw-Hill
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Chapter 9.3, Problem 19R
To determine

The comparison between the loudness of sound waves that constructively interfere with the loudness of sound waves that destructively interfere.

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Explanation of Solution

Introduction:

Loudness is a property of sound that determines the softness of the sound. It depends on the intensity of sound wave.

Constructive interference means merging of two or more waves which are in phase. Constructive interference increases the loudness of a sound.

Destructive interference is caused when two or more out phased waves merge with each other. The loudness of sound decreases in a destructive interference.

Conclusion:

Thus, the loudness of sound increases in constructive interference while the loudness of sound decreases in destructive interference.

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