Describe briefly the production of sound in sound in each of the following instruments: (a)trumpet (b)drum
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(a) Sound is produced by buzzing the lips.
The trumpeter produces sound from the trumpet by buzzing his lips. There are various different mouthpiece shapes-a mouthpiece with a deep cup will produce a mellower sound, while a mouthpiece with a shallower cup will produce a bright, piercing sound.
(b) The vibration of the head shakes the entire drum.
Striking the head of the drum changes its shape and compresses the air inside the shell. These vibrations of the top and bottom heads create vibrations in the air, which become sound, and eventually, as the head vibrations are dampened, the sound diminishes.
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