The speed of sound in an air column of 8...

The speed of sound in an air column of `80 cm` closed at one end is `320 m//s`. Find the natural freqencies of air column between `20 Hz` and `2000 Hz`.

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The correct Answer is:

`100(2n + 1) Hz` where `n = 0, 1, 2, 3, ……, 9`

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