Sound Intensity Video Lessons

Concept

# Problem: A certain sound level is increased by an additional 20 dB. By how much does the intensity increase?a) the intensity increases by a factor of 100b) the intensity does not increasec) the intensity increases by a factor of 2d) the intensity increases by a factor of 20e) the intensity increases by a factor of 200

###### FREE Expert Solution

Intensity factor:

$\overline{){\mathbf{F}}{\mathbf{=}}{{\mathbf{\left(}}{\mathbf{10}}{\mathbf{\right)}}}^{\frac{\mathbf{L}\mathbf{I}}{\mathbf{10}}}}$, where LI is the sound intensity.

83% (399 ratings)
###### Problem Details

A certain sound level is increased by an additional 20 dB. By how much does the intensity increase?

a) the intensity increases by a factor of 100
b) the intensity does not increase
c) the intensity increases by a factor of 2
d) the intensity increases by a factor of 20
e) the intensity increases by a factor of 200