The perception of the loudness B (in decibels, dB) of a sound with physical intensity I (in W/m2) is given by B = 10 log(÷) Io where Io is the physical intensity of a barely audible sound. Find the decibel level (loudness) of a sound whose physical intensity I is 1000 times that of Io (this is the decibel level of a whisper).

The perception of the loudness B (in decibels, dB) of a sound with physical intensity I (in W/m2) is given by B = 10 log(÷) Io where Io is the physical intensity of a barely audible sound. Find the decibel level (loudness) of a sound whose physical intensity I is 1000 times that of Io (this is the decibel level of a whisper).

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter5: Inverse, Exponential, And Logarithmic Functions

Section5.6: Exponential And Logarithmic Equations

Problem 16E

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