At a Distance of 20 M from a Sound Source

question 20

Multiple Choice

At a distance of 20 m from a sound source the intensity level is 60 dB.What is the intensity level (in dB) at a point 2.0 m from the source? Assume that the source radiates equally in all directions.

• A)80 dB
• B)45 dB
• C)62 dB
• D)87 dB
• E)95 dB

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Definitions:

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The act of consuming substances, which could be legal or illegal, for recreational, medicinal, or other purposes.

Exciting

Causing great enthusiasm and eagerness, often leading to stimulation or increased activity.

Genetic Expression

The process by which information from a gene is used to direct the assembly of a protein molecule, determining physical traits.

Environmental Factors

Elements within the surrounding environment that can affect processes, development, or the condition of something or someone.