How much more intense than the threshold of hearing is a

Stp 1 of 4 The scale for measuring intensity is the decibel scale. The threshold of hearing is assigned a sound level of 0 decibels (abbreviated as dB); this sound corresponds to an intensity of 1× 10 12 W/m 2 I We have relation dB= 10 log ( I0) Stp 2 of 4 If dB=10 I 10= 10 log ( 1012) I=10 11 W/m 2 A sound that is 10 times more intense ( 1× 10 11 W/m ) is assigned a sound level of 10 dB. Stp 3 of 4 A sound that is 1000 times more intense ( 1× 10 9 W/m ) is assigned a sound level of 30 dB. Stp 4 of 4 A sound that is 1000000 times more intense ( 1× 10 6 W/m ) is assigned a sound level of 60 dB.