A sound wave traveling in 20 degrees C air has a pressure amplitude of 0.5 Pa. What is the...

Question:

A sound wave traveling in {eq}\rm 20 ^\circ C {/eq} air has a pressure amplitude of {eq}\rm 0.5\ Pa {/eq}. What is the intensity of the wave?

The intensity of the Wave:

The intensity of a sound wave moving through a medium is inversely related to the product of the medium's density and the wave's velocity. The watt per meter square scale is used to measure the magnitude of a wave's intensity.

Answer and Explanation: 1

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Given Data:

  • Pressure amplitutde, {eq}\Delta P=0.5\ \rm Pa {/eq}
  • Temperature of air, {eq}T=20^{\circ}\rm C {/eq}

We are asked to determine the...

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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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