Question Detail
Question
In the 'Problem' section, the sound intensity calculations are given as IA = k/5², IB = k/3², and IC = k/9². What are the respective distances of points A, B, and C from the sound source P based on these calculations?
Correct Answer
Option A is the correct answer.
Detailed Explanation
The problem's provided calculation directly uses IA = k/5², IB = k/3², and IC = k/9². Since intensity (I) is inversely proportional to the square of the distance (r) from the source (I = k/r²), these expressions indicate that the distances from source P to A, B, and C are 5 meters, 3 meters, and 9 meters respectively.
Hint
Refer to the squared terms in the provided intensity calculations (IA = k/5², IB = k/3², IC = k/9²) to find the distances.