a) What is the intensity of a sound that has a level 7.00dB lower than a 4.00x10^9W/m^2 sound? b)...
Question:
a) What is the intensity of a sound that has a level 7.00dB lower than a 4.00x10{eq}^9 {/eq}W/m{eq}^2 {/eq} sound?
b) What is the intensity of a sound that is 3.00dB higher than a 4.00x10{eq}^9 {/eq}W/m{eq}^2 {/eq} sound?
Intensity of Sound:
In physics, the intensity of the sound wave is defined as the average sound power flowing in the unit area. Our ears can detect the sound intensity of up to 20 watts per meter square or more. It is also proportional to the change in pressure squared
Answer and Explanation: 1
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Given Data
- The sound in decibel in first case is: {eq}{\beta _1} = 7\;{\rm{dB}} {/eq}
- The intensity of sound corresponding to...
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Sound Waves Lesson for Kids: Definition & Facts
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Chapter 1 / Lesson 14
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Explore the fascinating world of sound waves to discover what it is people really hear. Investigate how sound waves move through matter and how different vibration speeds create different sounds. Finally, learn why sound waves are important.
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