The Loudness of a Sound Can Be Quantified in Units $\mathrm { d } = 10 \log \frac { \mathrm { I } } { \mathrm { I } _ { 0 } }$

question 16

Multiple Choice

The loudness of a sound can be quantified in units called decibels, where the number of decibels d is given by the formula $\mathrm { d } = 10 \log \frac { \mathrm { I } } { \mathrm { I } _ { 0 } }$ What is the decibel rating of a sound having an intensity $\mathrm { I } = 1000 \mathrm { I } 0$ ?

• A) 13 decibels
• B) 3 decibels
• C) 30 decibels
• D) 1000 decibels

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Definitions:

Substitutes

Products or services that can be used in place of each other, satisfying the same needs or wants of the consumer.

Monopolist

A single seller in a market who has significant control over the entire supply of a good or service, and thus can influence price.

Marginal Revenue

The additional income generated from selling one more unit of a product or service.

Equilibrium

When aggregate demand equals aggregate supply.