The frequency of sound is 100 Hz. How many times does it vibrate in half a minute?
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The frequency of 100 hertz means that the source of sound vibrates 100 times in 1 second.
1 minute = 60 seconds
1 minute = 60 x 100 times
1 minute = 6000 times
1/2 minute = 3000 times
Answer : 3000 times
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