when does body produce sound
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Explanation:
Body vibrates and it reaches us through the vibrations of the particle of surrounding medium. The sound requires a medium for propagation the medium of the body produce vibration in the particle of surrounding medium which travels in the form of wave with a certain speed depending upon the density.
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sound is produced when aerodynamic phenomena cause vocal folds to vibrate rapidly in a sequence of vibratory cycles with speed of about: 110cycle per second or Hz (men) = lower pitch.180 to 220cycle per second (women) = medium pitch...........
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