SOLUTION: A. The decibel level of sound is given by D=10log(I÷10^-12) where I is the sound intensity measured
in watts per square meter
1. Find the intensity of a sound which has a sound
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Question 1189073: A. The decibel level of sound is given by D=10log(I÷10^-12) where I is the sound intensity measured
in watts per square meter
1. Find the intensity of a sound which has a sound level reading of 125 decibels.
2. Find the decibel of a whisper at an intensity of 5.4x10^-19.
Computations and Answers:
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
D=10 log (I/Io)
12.5= log (I/io)
raise to 10th power
3.16x 10^12=I/Io
Io=10^-12
so I=3.16 w/m^2
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For the second part, the intensity of a whisper is about 10^-10 decibels, 9 orders of magnitude higher than what is given, and if 10^-19 is used, the answer will be negative.
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