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In fundamental mode, the time required for the sound wave to each upto the closed end of a pipe filled with air is ' $t$ ' second. The frequency of vibration of air column is
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Verified Answer
The correct answer is:
$\frac{0.25}{t}$
$\begin{aligned}
& \Rightarrow V=\frac{L}{y}=(4 L) g \\
& \Rightarrow f=\frac{0.25}{t}
\end{aligned}$
Option (D) is correct
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