How is loudness related to the amplitude of a wave?
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Loudness is directly proportional to the square of amplitude of wave.
Loudness ∝ (amplitude)2
Hence, greater the amplitude of vibrations, louder is the sound produced.
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Name three characteristics of a musical sound.
Which of the following determines the loudness of a sound wave?
(a) Wavelength
(b) Frequency or
(c) Amplitude.
If the amplitude of a wave is doubled, what will be the effect on its loudness?
Name the unit in which the loudness of sound is expressed.