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PHY 104 Pitch, loudness, quality, timber Objective Question

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According to the document, what is sound intensity (acoustic intensity) defined as?

A The maximum displacement of air particles caused by the sound wave.

B The rate at which sound waves oscillate per second.

C The power carried by sound waves per unit area in a direction perpendicular to the area.

Correct Answer

D The total energy of sound waves emitted by a source per unit time.

Option C is the correct answer.

The document defines sound intensity as, 'the power carried by sound waves per unit area in a direction perpendicular to the area.'

The unit of intensity, Watts per square meter, provides a clue to its definition.

Course: PHY 104

Topic: Pitch, loudness, quality, timber

Type: Objective

Difficulty: Not specified

Question 406 of 947

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