Question Detail

PHY 104 Pitch, loudness, quality, timber Objective Question
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Question

How is 'Sound intensity' (or acoustic intensity) defined in the context of the document?
Options
A The pitch of a sound wave.
B The power carried by sound waves per unit area in a direction perpendicular to the area.
Correct Answer
C The amplitude of the sound wave.
D The logarithmic ratio between two levels of signal power.
Correct Answer

Option B is the correct answer.

Detailed Explanation

The text defines: 'Sound intensity or acoustic intensity, is the power carried by sound waves per unit area in a direction perpendicular to the area.'

Hint

Locate the explicit definition of 'Sound intensity' in the section about its variation with distance.

Question Info

Course: PHY 104
Topic: Pitch, loudness, quality, timber
Type: Objective
Difficulty: Not specified
Question 394 of 947
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