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The sound intensity is 0.0080 W/m^2 at a distance of 10 m from an isotropic point source of...

Question:

The sound intensity is {eq}0.0080 W/m^2 {/eq} at a distance of {eq}10 m {/eq} from an isotropic point source of sound.

a) What is the power of the source?

b) What is the sound intensity {eq}5.0 m {/eq} from the source?

Intensity of Sound

The sound intensity of the sound is the measure of the power (of the sound waves) in one unit area. The intensity of the sound is inversely proportional to the square of the distance to the listener, and intensity depends on the power of the sound waves.

Answer and Explanation: 1

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Given data

  • The sound intensity is: {eq}I = 0.0080\;{\rm{W/}}{{\rm{m}}^2} {/eq}
  • The distance between to the sound source and reference point is:...

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Intensity in Physics: Definition & Measurement

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Chapter 5 / Lesson 10
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This lesson explains what wave intensity in physics is, and it explains the intensity of light formula with examples. This lesson also describes how to calculate intensity of sound waves.


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