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Wave Equation

A cyclindrica...

Question

A cyclindrical glass tube is $35 c m$ long. If both ends of the tube are open, what is the fundamental frequency of vibration of air column. Neglect end correction.
(Velocity of sound in $a i r = 350 m / s$ )

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Solution

Given: $l = 35 c m = 0.35 m$
$y = 350 m / s$
For Open pipe: $n = \frac{V}{2 l} = \frac{350}{2 \times 0.35} = 500 H z$

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