Question

A normal conversation involves sound intensities of about 3.0 x 10" wm. what is the decibel level for this intensity? What is the intensity of the sound for 100 dB?​

Answer 1

Answer:

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Answer 2

Answer:

Correct option is

A

65

sound intensity = 30 x 10

−6

m

2

w

sound level = 10 log

I∘

I

I∘=10

−2

m

2

W

sound level = 10 log _

10

−12

3x10

−6

= 10 [(0.47) +6}

= 10 x (6.4)

=64.8db