Sound Level: at a Distance of 2

question 108

Multiple Choice

Sound level: At a distance of 2.00 m from a point source of sound, the intensity level is 80.0 dB. What will be the intensity level at a distance of 4.00 m from this source? The lowest detectable intensity is 1.0 × 10^-12 W/m².

• A) 77.0 dB
• B) 74.0 dB
• C) 60.0 dB
• D) 40.0 dB
• E) 20.0 dB

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Definitions:

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The actual selling price of goods and services in the marketplace, determined by supply and demand forces.

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A time frame in economics where all inputs can be varied, and there are no fixed factors of production.

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Market Price

The contemporary selling or buying price of goods or services in a commercial arena.