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Wave Equation

fundamental f...

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fundamental frequency of a open pipe is 30 Hz. if 2nd harmonic of open pipe is same as 3rd harmonic of close pipe. find length of air column in 2 pipe.(speed of sound in air =330 m/s)

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Q. A closed pipe is suddenly opened and changed to an open pipe of same length. The fundamental frequency of the resulting open pipe is less than that of 3rd harmonic of the earlier closed pipe by 55 Hz. Then the value of fundamental frequency of the closed pipe is

Q. An open organ pipe has fundamental frequency of

300 Hz

. The first overtone of this organ pipe is same as the first overtone of a closed organ pipe. Find the length of the closed organ pipe?
[speed of sound in air

= 330 m/s

]

Q. A closed pipe is suddenly opened and changed to an open pipe of same length. The fundamental frequency of the resulting open pipe is less than that of

3^{r d}

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Q. An open organ pipe filled with air has a fundamental frequency 500Hz. The first harmonic of another organ pipe closed at one end and filled with carbon dioxide has the same frequency as that of the first harmonic of the open organ pipe. Calculate the length of each pipe. Assume that the velocity of sound in air and in carbondioxide to be 330 and 264 m/s respectively.

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