Question Detail

PHY 104 Pitch, loudness, quality, timber Objective Question

Question

According to the document, if the amplitude of a sound wave is doubled, how much louder does the sound become?
Options
A Twice
B Three times
C Four times
Correct Answer
D Eight times
Correct Answer

Option C is the correct answer.

Detailed Explanation

The text states: 'The Intensity of a sound wave is directly proportional to the square of its amplitude. If we double the amplitude of a wave, the sound is 4 times louder.'

Hint

Consider the relationship between intensity and amplitude squared.

Question Info