A certain organ pipe, open at both ends, produces a fundamental frequency of 290 Hz in...

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Answer 1

Answer #1

I assume that you just need Answers for the second part only.

Part-(B)

If the pipe is closed at one end. frequency (f) will be proportional to velocity (v).

f_He / f_air = ( V_He / 4L ) / ( V_air / 4L ) = V_He / V_air.

Therefore, f_He stays the same.

Answer 2

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