Loudness is frequently measured in decibels. If x is sound intensity measured in watts per square meter decibel level is provided L(x)=10log x/Io where Io= 10^-12 watts per square meter, least intense sound that human ear can detect. In this measurement, how much decibels is least sound of human ear can detect?
If intensity is 1,000,000 watts per square meter, find decibel level? If the dripping faucet is 30 decibels, compute sound intensity.