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प्रश्न
In order to reduce the loudness of a sound, we have to
विकल्प
decrease its frequency of vibration of the sound
increase its frequency of vibration of the sound
decrease its amplitude of vibration of the sound
increase its amplitude of vibration of the sound
उत्तर
decrease its amplitude of vibration of the sound
Explanation -
Since, loudness depends upon amplitude, so it can be increased by increasing amplitude and it can be decreased by decreasing amplitude.
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