MCQ
The two nearest harmonics of a tube closed at one end and open at other end are $220\,\, Hz$ and $260\,\, Hz.$ What is the fundamental frequency of the system .... $Hz$ ?
  • A
    $10$
  • $20$
  • C
    $30$
  • D
    $40$

Answer

Correct option: B.
$20$
b
Nearest harmonics of an organ pipe closed at one end is differ by twice of its fundamental frequency.
$ 260 - 220 = 2v, v = 20\ Hz$

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