Question Detail

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

According to the inverse-square law for sound intensity, if the distance from a sound source doubles, how does the sound intensity change?
Options
A It doubles.
B It is halved.
C It becomes one-fourth of the original intensity.
Correct Answer
D It remains the same.
Correct Answer

Option C is the correct answer.

Detailed Explanation

The text states 'I ∝ 1/r^2'. If r doubles (2r), then I ∝ 1/(2r)^2 = 1/(4r^2), meaning the intensity becomes one-fourth.

Hint

Remember the 'inverse-square' relationship with distance.

Question Info

Course: PHY 104
Topic: Pitch, loudness, quality, timber
Type: Objective
Difficulty: Not specified
Question 465 of 947
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