Asked by A
If the amplitude of a sound wave is tripled,
A.) by what factor will the intensity increase?
B.) by how many dB will the sound level increase?
A.) by what factor will the intensity increase?
B.) by how many dB will the sound level increase?
Answers
Answered by
drwls
A) 3^2 = 9
Intensity is proportional to the square of ampltitude.
B) I2/I1 = 9
dB = 10 Log(I/Io)
dB2 - dB1 = 10 Log(I2/I1)= 10 Log9 = 9.5
Intensity is proportional to the square of ampltitude.
B) I2/I1 = 9
dB = 10 Log(I/Io)
dB2 - dB1 = 10 Log(I2/I1)= 10 Log9 = 9.5
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