The Sound Level at a Point P Is 14 Db

question 25

Multiple Choice

The sound level at a point P is 14 db below the sound level at a point 1.0 m from a point source.Assuming the intensity from a point source drops off like the inverse square of the distance, the distance from the source to point P is:

• A)4.0 cm
• B)20 m
• C)2.0 m
• D)5.0 m
• E)25 m

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