a) The sound level of a jet at take off is 140 dB, while the level of a normal conversation is 50 dB. What is the ratio of the intensities of the sound level of the jet versus the level of normal conversation? b) What is the loudness of a jackhammer (in use) if it is known that this sound has anintensity 10 times that of sound due to heavy city traffic
a) The sound level of a jet at take off is 140 dB, while the level of a normal conversation is 50 dB. What is the ratio of the intensities of the sound level of the jet versus the level of normal conversation? b) What is the loudness of a jackhammer (in use) if it is known that this sound has anintensity 10 times that of sound due to heavy city traffic
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Question
The difference in two sound levels, β1 and β2, in decibels (dB), is given by the logarithmic equation
β2 − β1 = 10 log ( I2/,I1)
where I2/I1 is the ratio of their intensities.
a) The sound level of a jet at take off is 140 dB, while the level of a normal conversation is 50 dB. What is the ratio of the intensities of the sound level of the jet versus the level of normal conversation?
b)
What is the loudness of a jackhammer (in use) if it is known that this sound has anintensity 10 times that of sound due to heavy city traffic (90 dB)?
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