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The frequency of source of sound is 100 ...

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

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Frequency of sound = 100Hz. Number of vibrations in 1 minutes (60 second) = 100 `xx 60= 6000`
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NAND LAL PUBLICATION-SOUND-Exercises
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  20. Explain how the human ear works.

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