Question: Show that the difference between decibel levels B1 and B2 of a sound is related to the ratio of the distances r1 and r2 from

Show that the difference between decibel levels B1 and B2 of a sound is related to the ratio of the distances r1 and r2 from the sound source by B2 ─ B2 = 20 log (r1/r2)

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