Solving Sound Intensities | W/m^2 and dB

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Homework Help Overview

The discussion revolves around sound intensities and their relationship to decibel levels, specifically addressing two problems involving intensity levels and the inverse square law in acoustics.

Discussion Character

  • Exploratory, Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants explore definitions related to decibels and sound intensity, question the relevance of the inverse square law, and seek clarification on the problems presented.

Discussion Status

The conversation includes attempts to clarify the definitions and relationships between sound intensity and decibels. Some participants have offered hints regarding relevant equations and concepts, while others express confusion about the problems.

Contextual Notes

There is an indication of missing information or understanding regarding the calculations needed for the problems, as well as the application of the inverse square law in the context of sound intensity.

Huskies213
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Can anyone help me with how you would solve these? i am lost...

1.) Soudn 1 has an intensity of 380 W/m^2. Sound 2 has an intensity level of 2.5 dB greater than the intensity level of soudn 1. What is the intensity level of sound 2?

2.) A siren produces a soudn of 120 dB at 2m. Find the intensity level of the siren at 12m.
 
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What have you tried to do so far?
 
1) What is the definition of a decibel in regards to sound intensity?

2) What does this question have to do with the inverse square law?
 
Re

Can anyone help ? I am lost
 
You need to do some reading. I gave you two very large hints with the questions I asked you. Look up the equation for calculating decibels from the sound intensity. Also, look up the inverse square law.
 

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