Question Detail
Question
The intensity of a sound wave falls with distance in an inverse-square manner. Which of the following best represents this relationship?
Correct Answer
Option D 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'. This translates to I ∝ 1/r².
Hint
Look for the mathematical proportionality describing how intensity changes with distance.