What is the sound intensity of a whisper at a distance of 2.0 m, in W/m2? What is the...
Question:
What is the sound intensity of a whisper at a distance of 2.0 {eq}m{/eq}, in {eq}W/m^2{/eq}? What is the corresponding sound intensity level in dB?
Intensity:
Mathematically, the intensity of a sound wave can be calculated by dividing the power source with the surface area. The fundamental unit used to measure it is watts per meters squared (W/m2 ). It is directly related to the value of the power source.
Answer and Explanation: 1
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We are given the following data:
- Distance, {eq}{r_2} = 2.0\;{\rm{m}}{/eq}
Because the intensity of whisper at {eq}{r_1} = 1\;{\rm{m}}{/eq} 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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