The intensity of sound radiated from a small source is measured at a point 50meters from the source and found to be 2.0u W/m^2. What will the intensity at a point that is 200m further from the source?
Intensity and distance are inversely proportional
Therefore
I1/I2= d22/d12
{2uW/m2}×502/{2002} = I2
intensity at 200m is
I2= 0.125 u W/m2
The intensity of sound radiated from a small source is measured at a point 50meters from...
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