Question

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

A
Frequency increases
B
Frequency decreases
C
Amplitude increases
D
Amplitude decreases

Solution

The correct option is C Amplitude decreasesWhen 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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