# At a distance of 15 m from a sound source, the intensity level is 60 dB. What is the intensity...

## Question:

At a distance of 15 m from a sound source, the intensity level is 60 dB. What is the intensity level (in dB) at a point of 2.0 m from the source? Assume that the source radiates equally in all directions.

## Sound intensity level

Given the sound intensity {eq}I {/eq}, the sound intensity level {eq}\beta {/eq} is

{eq}\beta = (10 \ \text{dB}) \log \dfrac{I}{I_0}, {/eq}

where {eq}I_0 = 10^{-12} \ \text{W}/\text{m}^2 {/eq}.

## Answer and Explanation: 1

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View this answerRecall that given a source that emits sound equally at all directions, then the intensities {eq}I_1 {/eq} and {eq}I_2 {/eq} at distances...

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Chapter 21 / Lesson 5Sound waves, much like physical waves, interact causing disruptions to the sound in different ways. Identify examples of sound wave interference, constructive interference, destructive interference, and the 'beating' observed in interacting sound waves.

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