Concept explainers
(a)
To Calculate: The power output of the loudspeaker.
(a)
Answer to Problem 16P
The power output of the speaker is
Explanation of Solution
Given:
Intensity is,
Hearing intensity,
The distance is
Formula used:
The intensity is given as,
Here,
The intensity is given as,
Here,
Calculation:
The power output corresponding to the given intensity is,
So,
Or,
Conclusion:
The output power is
(b)
To Calculate: The distance of the sound level.
(b)
Answer to Problem 16P
The sound level would be
Explanation of Solution
Given:
The given value is
Formula used:
The intensity is given as,
Here,
The intensity level is given as,
Here,
Calculation:
Write the expression for intensity level,
And the distance in terms of the power output is,
Conclusion:
The distance is
Chapter 12 Solutions
Physics: Principles with Applications
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