A common approximation is when the intensity of a sound is doubled,the decibel level increases by 3.The sound level in a particular location is 100 dB.By what approximate factor is the sound intensity increased if the new decibel level of this sound is 106?
A)2
B)3
C)4
D)6

Question

​A common approximation is when the intensity of a sound is doubled,the decibel level increases by 3.The sound level in a particular location is 100 dB.By what approximate factor is the sound intensity increased if the new decibel level of this sound is 106?
A)​2
B)​3
C)​4
D)​6

Quizplus · Accepted Answer

According to the approximation, a 6 dB increase corresponds to a factor of 4 increase in sound intensity. Therefore, to go from 100 dB to 106 dB, there is a 6 dB increase, which corresponds to a 4-fold increase in sound intensity.

​A Common Approximation Is When the Intensity of a Sound

A Common Approximation Is When the Intensity of a Sound