The sound level of a 1 W/m squared intensity is (in dB) A. 1 B. 10...

Question

Question

The sound level of a 1 W/m squared intensity is (in dB)

A. 1

B. 10

C .120

D. 130

E. 200

science physics

Answer 1

Answer #1

here,

Intensity level, in dB = 10 log(I/Io) where log = log base 10

I0 = 1 * 10^-12 W/m^2

so,

the sound level in dB = 10 * log(1 /(1 * 10^-12))

dB = 120 dB

the sound level in dB is C) 120

Answer 2

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