Answer:
The intensity increases by a factor 100.
Explanation:
Given that,
Sound intensity = 20 db
We need to calculate the intensity factor
[tex]F=10^{\dfrac{LI}{10}}[/tex]
Where, LI = sound intensity
Put the value into the formula
[tex]F=10^{\dfrac{20}{10}}[/tex]
[tex]F=10^2[/tex]
[tex]F=100[/tex]
Hence, The intensity increases by a factor 100.