Question

The record for the world’s loudest burp is 109.9 dB, measured at a distance of 2.5 m from the burper. Assuming that this sound was emitted as a spherical wave, what was the power emitted by the burper during his record burp?

Answer 1

Power of the source is 7.7 W

Step-by-step explanation:

As we know that the sound level is measured as

`L = 10 Log (I)/(I_o)`

now we have

`L = 109.0 dB`

so we have

`109.9 = 10 Log(I)/(10^(-12))`

`I = 0.098 W/m^2`

now power of the source is given as

`P = I(4\pi r^2)`

`P = 0.098(4\pi )(2.5^2)`

`P = 7.7 W`