By What Amount Does the Sound Intensity Decrease When the Distance

question 14

Multiple Choice

By what amount does the sound intensity decrease when the distance to the source triples?

• A) 1.9 dB
• B) 3 dB
• C) 9 dB
• D) 10 dB
• E) ​0.11 dB

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Definitions:

Percentage Change

A mathematical calculation that indicates the degree of change over time, expressed as a proportion of the starting value.

Total Revenue

The complete amount of income generated by the sale of goods or services before any expenses are subtracted.

Price Elasticity

A measure of how much the quantity demanded of a good responds to a change in the price of that good, indicative of the sensitivity of consumers to price changes.

Demand

The willingness and ability of consumers to purchase goods and services at different prices.