1.

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

Answer»

cy means number of VIBRATIONS per second.Frequency = 100 HzSo 100 vibrations per second.in 1 MINUTE( or 60 seconds) , number of vibrations = 60×100 = 6000it vibrates 6000 times in a minute



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