Answer:
The power is
Explanation:
From the question we are told that
The distance from the siren is
The intensity level is
The threshold of hearing is
Generally the intensity level is mathematically represented as
Where I is the intensity at which the siren radiates the sound
substituting values
=>
Now the amount of power the siren put out is mathematically evaluated as
Where A is the area of the siren which is taken as a sphere and it is mathematically evaluated as
So
substituting values