The factor by which the acoustic power is changed is 7943.28

[woaini]

Sound "Factor of"

Homework Statement

The intensity level of a particular sound coming through a medium gets reduced from 80 dB to 41 dB. By what factor is the acoustic power that can pass through changed by?

B1=80
B2=41

Homework Equations

10*log($\frac{I2}{I1}$) = B1-B2

The Attempt at a Solution

I was wondering if I applied the correct method.

log($\frac{I2}{I1}$) = 3.9

Using anti-log I get:
$\frac{I2}{I1}$ = 7943.28

 

[haruspex]

Looks right to me.