A Decibel meter reads 140 dB for a sound source at 20''c at 60 % relative humidity. It also records sound pressure for 140 dB as 200 pascals what will it read( decibel meter) at 40''c at 86 % humidity for same sound having sound pressure 200 pascals ? Posted Date: 3/22/2012 8:28:46 AM | Location : United States

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