SOLUTION: The loudness L(x),measured in decibels, of a sound intensity x, measured in watts per square meter, is defined as L(x)=10log(x/Io), where I0= 10^-12 watt per square meter is the le
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-> SOLUTION: The loudness L(x),measured in decibels, of a sound intensity x, measured in watts per square meter, is defined as L(x)=10log(x/Io), where I0= 10^-12 watt per square meter is the le
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Question 1131230: The loudness L(x),measured in decibels, of a sound intensity x, measured in watts per square meter, is defined as L(x)=10log(x/Io), where I0= 10^-12 watt per square meter is the least intense sound that a human can ear can detect. Determine loudness,in decibels,of a sound with an intensity of x=10^-8 watt per square meter Answer by ikleyn(52790) (Show Source):
All you need to do is to substitute the value x= into the formula.
You will get
L = (10*log((10^(-8))/(10^(-12)) = 10*log((10^4)) = 10*4 = 40 decibels.
