Question

Using the formula do you sound level and disciples are use the intensity of the sound you're measuring. Set an alarm to normal conversation has an intensity of 3.2×10 to the -6

Answer 1

65.1 decibels

Explanation:

Given

`I = 3.2 * 10^(-6)` --- intensity

Required

Determine the sound level

This is calculated using:

`B = 10\log((I)/(I_o))`

Where:

`I_o = 1 * 10^(-12)`

So, we have:

`B = 10\log((3.2 * 10^(-6))/(1 * 10^(-12)))`

Apply law of indices

`B = 10\log((3.2 * 10^(-6+12))/(1))`

`B = 10\log(3.2 * 10^(6))`

Using a calculator, we have:

`B = 10*6.51`

`B = 65.1`