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Solve the Problem β=10log(I0)\beta = 10 \log \left( \mathrm { I } _ { 0 } \right)

Question 155

Multiple Choice

Solve the problem.
-Use the formula β=10log(I0) \beta = 10 \log \left( \mathrm { I } _ { 0 } \right) , where the loudness of a sound in decibels is determined by I, the number of Watts/ m2\mathrm { m } ^ { 2 } produced by the sound wave, and I0=1012 W/m2\mathrm { I } _ { 0 } = 10 ^ { - 12 } \mathrm {~W} / \mathrm { m } ^ { 2 } . A certain noise measures 101 decibels. If the intensity is multiplied by 100 , how many decibels will the new noise measure? (Round to the nearest unit.)


A) 10,100 decibels
B) 121 decibels
C) 103 decibels
D) 202 decibels

Correct Answer:

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