Answer:
[tex]I=0.0795\ W/m^2[/tex]
Explanation:
When a person shouts it emits 1 W of energy as sound waves, P = 1 W
Let I is the sound intensity 1 meters from such a person. We know that the power per unit area is called the sound intensity of the person. Its formula is given by :
[tex]I=\dfrac{P}{A}[/tex]
[tex]I=\dfrac{P}{4\pi r^2}[/tex]
[tex]I=\dfrac{1\ W}{4\pi (1\ m)^2}[/tex]
[tex]I=0.0795\ W/m^2[/tex]
So, the sound intensity of such a person is [tex]0.0795\ W/m^2[/tex]. Hence, this is the required solution.
