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The amplitude of a sound wave is measured in terms of its
Chapter 17, Problem 24(choose chapter or problem)
Problem 24PE
The amplitude of a sound wave is measured in terms of its maximum gauge pressure. By what factor does the amplitude of a sound wave increase if the sound intensity level goes up by 40.0 dB?
Questions & Answers
QUESTION:
Problem 24PE
The amplitude of a sound wave is measured in terms of its maximum gauge pressure. By what factor does the amplitude of a sound wave increase if the sound intensity level goes up by 40.0 dB?
ANSWER:Solution 24PE
Sound intensity level in units of decibels (dB) can be written as,
(dB) =
Here, is the sound intensity level, is the intensity of sound andis the threshold intensity of hearing.
Calculate the ratio of intensity of sound from relation,
(dB) - = 40
Here, is the initial sound intensity level and is the final sound intensity level.
Substitute