A sufficiently long closed organ pipe has a small hole at its bottom. Initially, pipe is empty. Wate

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14.Waves and Sound

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A sufficiently long closed organ pipe has a small hole at its bottom. Initially, the pipe is empty. Water is poured into the pipe at a constant rate. The fundamental frequency of the air column in the pipe

continuously increases

first increaes and then becomes constant

continuously decreases

first decreases and then becomes constant

Solution

Fundamental frequency of a $COP$ is given by:

$\mathrm{f}_{\mathrm{o}}=\frac{\mathrm{v}}{41}$

Length $l$ of air column will first decrease and then becomes constant (When rate of in flow $=$ rate of out flow) Therefore $f_{0}$ will first increase and then become constant.

Standard 11

Physics

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A transverse harmonic wave on a string is described by $y = 3\sin \left( {36t + 0.018x + \frac{\pi }{4}} \right)$ where $x$ and $y$ are in $cm$ and $t$ in $s$. The least distance between two successive crests in the wave is …. $m$

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normal

A sufficiently long closed organ pipe has a small hole at its bottom. Initially, the pipe is empty. Water is poured into the pipe at a constant rate. The fundamental frequency of the air column in the pipe

Solution

Similar Questions

Two open organ pipes of fundamental frequencies $n_1$ and $n_2$ are joined in series. The fundamental frequency of the new pipe so obtained will be

A transverse harmonic wave on a string is described by $y = 3\sin \left( {36t + 0.018x + \frac{\pi }{4}} \right)$ where $x$ and $y$ are in $cm$ and $t$ in $s$. The least distance between two successive crests in the wave is …. $m$

A point source emits sound equally in all directions in a non-absorbing medium. Two points $P$ and $Q$are at distances of $2m$ and $3m$ respectively from the source. The ratio of the intensities of the waves at $P$ and $Q$ is

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A train whistling at constant frequency is moving towards a station at a constant speed $V$. The train goes past a stationary observer on the station. The frequency $n'$ of the sound as heard by the observer is plotted as a function of time $t (Fig.)$ . Identify the expected curve

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