Asked by amy
An audio speaker at a concert emits sound uniformly in all directions at a rate
of 100 W.
(i) Calculate the sound intensity experienced by a listener at a distance
of 8 m from the speaker.
The listener moves back from the speaker to protect her hearing.
(ii) At what distance
from the speaker is the sound intensity level reduced by 3 dB?
of 100 W.
(i) Calculate the sound intensity experienced by a listener at a distance
of 8 m from the speaker.
The listener moves back from the speaker to protect her hearing.
(ii) At what distance
from the speaker is the sound intensity level reduced by 3 dB?
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