d (d) Speed of sound, doesn’t depend up on pressure and density medium.
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Stationary waves are produced in $10\,m$ long stretched string. If the string Vibrates in $5$ segments and wave velocity $20\,m/s$ the frequency is ..... $Hz$
The length of an open organ pipe is twice the length of another closed organ pipe. The fundamental frequency of the open pipe is $100\ Hz$ . The frequency of the third harmonic of the closed pipe is ..... $Hz$
A tuning fork sounded together with a tuning fork of frequency $256$ emits two beats. On loading the tuning fork of frequency $256,$ the number of beats heard are $1$ per second. The frequency of tuning fork is
A tuning fork is used to produce resonance in a glass tube. The length of the air column in this tube can be adjusted by a variable piston. At room temperature of $27\,^o C$ two successive resonances are produced at $20\, cm$ and $73\, cm$ of column length. If the frequency of the tuning fork is $320\, Hz,$ the velocity of sound in air at $27\,^o C$ is .... $m/s$
The equation of a wave on a string oflinear mass density $0.04$ $kgm^{-1}$ is given by
$y = 0.02sin\left[ {2\pi \left( {\frac{t}{{0.04\left( s \right)}} - \frac{x}{{0.50\left( m \right)}}} \right)} \right]m$ The tension in the string is .... $N$
A man is watching two trains, one leaving and the other coming with equal speed of $4\,m/s$. If they sound their whistles each of frequency $240\, Hz$, the number of beats per sec heard by man will be equal to (velocity of sound in air $= 320\, m/s$)
Equation of the progressive wave is given by : $y = a\sin \pi (40t - x)$ where $a$ and $x$ are in metre and $t$ in second. The velocity of the wave is ..... $m/s$
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