Question Detail

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

How does the intensity of a sound wave vary with distance from its source, according to the document?
Options
A It is directly proportional to the distance.
B It falls in an inverse-square manner.
Correct Answer
C It is inversely proportional to the distance.
D It is independent of the distance.
Correct Answer

Option B is the correct answer.

Detailed Explanation

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

Hint

Look for the section titled 'Variation of Intensity of Sound with distance from the source'.

Question Info

Course: PHY 104
Topic: Pitch, loudness, quality, timber
Type: Objective
Difficulty: Not specified
Question 374 of 947
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