Question

If the intensity of a loud car horn is 0.005 W/m^2 when you are 2 meters away from the source. Calculate the sound intensity level. A. 1.6 W

B. 0.06 W
C. 97 dB
D. 223 dB
E. 179 dB

Answer 1

(c) 97 dB sound intensity level

Step-by-step explanation:

We have given the intensity of the loud car horn
`I=0.005w/m^2`

We know that
`I_O=10^(-12)w/m^2`

Now the sound intensity level is given by
`\beta =10log(I)/(I_0)=10log(0.005)/(10^(-12))=96.98dB` , which is nearly equal to 97

So the sound intensity level will be 97 dB

So option (c) will be the correct option