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

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The loudness of a sound gets increased by increasing its amplitude and gets decreases by decreasing its amplitude.

So, option $(c)$ is correct.

Updated on 10-Oct-2022 13:29:14