allerySound wave intensity I dB scale. 60 dB to 80 dB ratio of intensity:
A10
B100 (= 10^(20/10))
C20
D2
Answer & Solution
Correct answer: B. 100 (= 10^(20/10))
dB = 10 log(I/I_ref). 80 - 60 = 20 dB.
Ratio = 10^(20/10) = 100.
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