Question Detail

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

Sound intensity, also known as acoustic intensity, is defined as the:
Options
A Total energy carried by sound waves over time.
B Power carried by sound waves per unit area in a direction perpendicular to the area.
Correct Answer
C Amplitude of the sound wave squared.
D Logarithmic ratio between two levels of signal power.
Correct Answer

Option B is the correct answer.

Detailed Explanation

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

Hint

The definition is given in the 'Variation of Intensity of Sound with distance from the source' section.

Question Info

Course: PHY 104
Topic: Pitch, loudness, quality, timber
Type: Objective
Difficulty: Not specified
Question 464 of 947
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