Rahul is playing the drums. An increase in which of the following properties of the sound produced would result in an increase in loudness?
A
Amplitude
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B
Speed
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C
Pitch
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D
Quality
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Solution
The correct option is A Amplitude The intensity or loudness of sound depends on the extent to which the sounding body vibrates, i.e. the amplitude of vibration. A sound is louder when the amplitude of vibration is greater. Loudness is measured in a unit called decibels (dB).