what is the name of sound sensing device & what is the working principal??

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2006-11-13 22:38:52 · 3 answers · asked by jameel k 1 in Science & Mathematics ➔ Engineering

May be a tunning fork

2006-11-13 22:57:52 · answer #1 · answered by beautiful 2 · 0⤊ 0⤋

Echo

2006-11-14 07:06:47 · answer #2 · answered by Rainbow 4 · 0⤊ 0⤋

Maybe a microphone? You can learn more about it at http://en.wikipedia.org/wiki/Microphone

2006-11-14 09:30:18 · answer #3 · answered by oleg_arch 2 · 0⤊ 0⤋