Question Detail

PHY 104 Pitch, loudness, quality, timber Objective Question

Question

Based on the problem solution provided in the text (with distances rA=5m, rB=3m, rC=9m), at which point is the sound intensity the highest?
Options
A Point A
B Point B
Correct Answer
C Point C
D Intensity is the same at all points.
Correct Answer

Option B is the correct answer.

Detailed Explanation

Sound intensity is inversely proportional to the square of the distance (I ∝ 1/r²). Therefore, the point closest to the source will have the highest intensity. Among 5m, 3m, and 9m, 3m (Point B) is the shortest distance.

Hint

Intensity decreases with distance. The shortest distance corresponds to the highest intensity.

Question Info