alleryStart learning →A sound has intensity 10^-6 W/m2. Its loudness in decibels is
A6 dB
B12 dB
C30 dB
D60 dB
Answer & Solution
Correct answer: D. 60 dB
L = 10 log10(10^-6 / 10^-12) = 10 x 6 = 60 dB.
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