The Sound Level at 1

question 28

Multiple Choice

The sound level at 1.0 m from a certain talking person talking is 60 dB.You are surrounded by five such people,all 1.0 m from you and all talking equally loud at the same time.The threshold of hearing is .What sound level are you being exposed to? You can neglect any absorption,reflection,or interference of the sound.The threshold of hearing is 1.0 × 10^-12 W/m².

• A) 300 dB
• B) 60 dB
• C) 74 dB
• D) 67 dB
• E) 81 dB

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Definitions:

Cheil

Pertaining to the lip, often used as a prefix in medical terms.

Postprandial

Pertaining to the period after a meal, often used in the context of blood glucose levels.

Pyloric Sphincter

A muscle that regulates the passage of food from the stomach to the small intestine.

Gavage

The process of feeding a person or animal through a tube.