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The frequency of a source of sound is 10...

The frequency of a source of sound is `100 Hz`. How many times does it vibrate in a minute ?

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The frequency of 100 Hz means that the source of sound vibrates 100 times in 1 second. Also 1 minute is equal to 60 seconds.
Now, No. of vibrations in 1 second = 100
So, No. of vibrations in 60 seconds `= 100 xx 60`
(or 1 minute) `= 6000`
Thus, the source of sound vibrates 6000 times in a minute.
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