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| PAGE: 426 | SET: Exercises | PROBLEM: 65 |
(a)
The level of sound is 
.
Standard intensity of sound is 
.
Intensity of sound of quiet room is 
.
Power property of logarithms: 
.
The level of sound is 
.
(b)
The level of sound is 
.
Standard intensity of sound is 
.
Intensity of sound of busy street corner is 
.
Power property of logarithms: 
.
The level of sound is 
.
(c)
The level of sound is .
Standard intensity of sound is .
Intensity of sound of quiet radio is 
.
Power property of logarithms: .
The level of sound is 
.
(d)
The level of sound is .
Standard intensity of sound is .
Intensity of sound of threshold of pain is 
.
Power property of logarithms: .
The level of sound is 
.
(a) The level of sound is 
.
(b) The level of sound is 
.
(c) The level of sound is 
.
(d) The level of sound is 
.
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