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Find the number of possible natural freq...

Find the number of possible natural frequencies of an air column in a pipe whose frequencies lie below 1250 Hz. The length of the pipe is 85 cm. The speed of sound is `340 ms^(-1)`. Consider the two cases: (a) the pipe is closed at one end and (b) the pipe is open at both ends.

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The correct Answer is:
(a) 6, (b) 6
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Find the number of possible natural oscillations of air column in a pipe whose frequencies lie below f_(0) = 1250 Hz . The length of the pipe is l = 85 cm . The velocity of sound is v = 340 m//s . Consider two cases the pipe is closed from one end .

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