How sound can be produced? Perform various experiments to produce different types of sound and analyze their pitch and loudness.
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sound is produced in a body vibrates
take a bell jar and in IT fit an electric bulb through an airtight croak as shown place a bell jar on the platform of the vacuum pump and apply a little grease at its edges to make it air tight
connect the bell to the battery through a key pressed ki you will able to hear the sound of the Bell as it hammer strike against the gong now start the vacuum pump it will be observed that the air in withdrawn from the bell jar, the loudness of the sound of the bell decrease
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