Question Detail

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

How does the intensity of a sound wave change with distance from its source?
Options
A It increases linearly with distance
B It falls inversely with distance
C It falls inversely with the square of the distance
Correct Answer
D It remains constant regardless of distance
Correct Answer

Option C is the correct answer.

Detailed Explanation

The text states: 'The intensity of a sound wave falls with distance in an inverse-square manner. That is, I ∝ I0 / r2'.

Hint

Think about how energy spreads out spherically from a point source.

Question Info

Course: PHY 104
Topic: Pitch, loudness, quality, timber
Type: Objective
Difficulty: Not specified
Question 367 of 947
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