In order to reduce the loudness of a sound we have to
A. decrease its frequency of vibration of the sound.
B. increase its frequency of vibration of the sound.
C. decrease its amplitude of vibration of the sound.
D. increase its amplitude of vibration of the sound.
Answer:C
In order to reduce the loudness of a sound we have to
A. decrease its frequency of vibration of the sound. B. increase its frequency of vibration of the sound. C. decrease its amplitude of vibration of the sound. D. increase its amplitude of vibration of the sound.