The intensity of sound I (as a multiple of the average minimum threshold of hearing intensity) is related to the decibel level D (or loudness of sound) according to . A decibel reading of 140 is at the threshold of pain. If
is the intensity of this threshold and
is the intensity when
, express the ratio
as a power of 10.
A)
B)
C)
D)
E)
Correct Answer:
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