What is the intensity of sound at 122 dB? Compare it to that of a whisper...

Question

Question

What is the intensity of sound at 122 dB?

Compare it to that of a whisper at 20 dB?

(both answers in W/m^2 units)

science physics

Answer 1

Answer #1

intensity level = 10*log(I/Io)

Io = threshold intensity = 10^-12 w/m^2

for intensity level = 122 dB

122 = 10*log(I1/10^-12)

I = 1.58 w/m^2

+++++++++

for intensity level = 20 dB

20 = 10*log(I2/10^-12)

I2 = 10^-10 w/m^2

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Answer 2

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