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Question

Which characteristic of sound changes when you lower the volume of your speaker?


Your Answer
A
Frequency increases
Your Answer
B
Frequency decreases
Your Answer
C
Amplitude increases
Correct Answer
D
Amplitude decreases

Solution

The correct option is C Amplitude decreases
When we decrease the volume of a speaker, the loudness of the sound reduces. Loudness is the perception of sound pressure, and, the degree of the change in pressure (compression and rarefaction) is determined by the amplitude of it. The amplitude is thus reduced in the real sense.

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