Question
Asked Nov 21, 2019
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When you are standing a distance r1 from a point source of sound, the sound intensity level is β1. When you move away from the source to a new distance r2, the sound intensity level drops to β2=β1 - 3 dB. Determine r2/r1.

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Expert Answer

Step 1

Sound intensity level is given by,

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B-10 log10

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Step 2

Therefore, difference in intensities is,

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-101og10 I A-A10log10 A-B 101og0 A-B 101og0

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Step 3

Substituting the...

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3 dB 201og1 In2 3 dB 20 In 10 03454 =1.4126 A

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Physics

Vibrations

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