Question

A certain sound level increases by an additional 20 db. By how much does the intensity increase?

Answer 1

Answer:

The intensity increases by a factor 100.

Explanation:

Given that,

Sound intensity = 20 db

We need to calculate the intensity factor

$F=10^{\dfrac{LI}{10}}$

Where, LI = sound intensity

Put the value into the formula

$F=10^{\dfrac{20}{10}}$

$F=10^2$

$F=100$

Hence, The intensity increases by a factor 100.