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## Homework Statement

A sound wave has an intensity level of 49 dB. What is the pressure amplitude of this wave?

Po= 2x10^-5

## Homework Equations

β=10log(I/I0)

I≈P^2

## The Attempt at a Solution

I can't figure out why I'm getting this problem wrong. So I set it up, 49=10log(I/I0)

-> 4.9=log(I/I0) -> 10^4.9=(I/I0) From there, I replaced the intensity for pressure amp (equation 2) -> p=(2*10^-5)√(10^4.9)

Pamp=.0056Pa

??