(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

An omidirectional source produces a free field sound pressure level of 77 dB at a radius of 1.6 m from the centre of the source. What free field sound pressure level in dB does it produce at a radius of 6 m from the centre of the sound source?

Answer: 65.5 dB

2. Relevant equations

p1/p2 = r1/r2

3. The attempt at a solution

p1/p2 = r2/r1

77/p2 = 6/1.6

3.75p2 = 77

p2 = 20.5 dB

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# Homework Help: Acoustics physics problem

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