A source of sound (1000 Hz) emits uniformly in all directions. An observer 2 m from the source measures a sound level of 21.4 dB. Calculate the average power output of the source. Answer in units of μW. By what factor will an intensity change for a 3.9 dB increase in the sound level?
A source of sound (1000 Hz) emits uniformly in all directions. An observer 2 m from the source measures a sound level of 21.4 dB. Calculate the average power output of the source. Answer in units of μW. By what factor will an intensity change for a 3.9 dB increase in the sound level?
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Transcribed Image Text:A source of sound (1000 Hz) emits uniformly
in all directions. An observer 2 m from the
source measures a sound level of 21.4 dB.
Calculate the average power output of the
source.
Answer in units of μW.
By what factor will an intensity change for a
3.9 dB increase in the sound level?
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