Intensity and Loudness of Sound ( Read ) | Physics
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Intensity and Loudness of Sound ( Read ) | Physics
Explore the concept of loudness in sound, its relation to intensity, and how factors like amplitude and distance affect it. Learn about decibel levels and their impact on hearing.
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SOLVED:Sound intensity, β, in decibels is defined as β=10 log((I)/(I0)), where I is the intensity of the sound measured in watts per square metre (W / m^2) and I0 is 10^-12 W / m^2, the threshold of hearing. a) The sound intensity of a hairdryer is 0.00001 W / m^2 . Find its decibel level. b) A fire truck siren has a decibel level of 118 dB . City traffic has a decibel level of 85 dB. How many times as loud as city traffic is the fire truck siren? c) The sound of Elly's farm tractor is 63 times
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