Answer:
Intensity of sound is given as
[tex]I = 3.18 \times 10^{-6} W/m^2[/tex]
Explanation:
As we know that the intensity of the sound is defined as power received per unit area
So here we know that dog delivers total power
P = 1 mW
now it delivers it into spherical area of radius r = 5 m
now we have
[tex]I = \frac{P}{4\pi r^2}[/tex]
so we have
[tex]I = \frac{1\times 10^{-3}}{4\pi(5^2)}[/tex]
[tex]I = 3.18 \times 10^{-6} W/m^2[/tex]
