How does sound work?
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Sound waves exist as variations of pressure in a medium such as air. They are created by the vibration of an object, which causes the air surrounding it to vibrate. The vibrating air then causes the human eardrum to vibrate, which the brain interprets as sound.
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Explanation:
sound is a mechanical wave ....it need medium like Air to travel ....in vaccum like outer space sound can't travel and by the help of medium like Air sound reach to our ears and we can hear the sound
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