The figure represents the instantaneous picture of a longitudinal harmonic wave travelling along the negative $x$-axis. Identify the correct statement $(s)$ related to the movement of the points shown in the figure. The stationary points are
A$a$
B$c$
C$g$
D$k$
Medium
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A$a$
a
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A tuning fork gives $4$ beats with $50\, cm$ length of a sonometer wire if the length of the wire is shortened by $1\, cm$. the no. of beats still the same. The frequency of the fork is -............. $\mathrm{Hz}$
The end correction of a resonance column is $1\,cm.$ If the shortest length resonating with the tuning fork is $10\,cm,$ the next resonating length should be ..... $cm$
Two vibrating tuning forks produce progressive waves given by $Y_1 = 4\, sin\, 500\pi t$ and $Y_2 = 2\, sin\, 506\, \pi t$ Number of beats produced per minute is
A cylindrical tube $(L = 120\,cm.)$ is resonant with a tuning fork of frequency $330\,Hz$. If it is filling by water then to get resonance minimum length of water column is ..... $cm$ $(V_{air} = 330\,m/s)$
In a medium sound travels $2\, km$ in $3\, sec$ and in air, it travels $3 \,km$ in $10\, sec$. The ratio of the wavelengths of sound in the two media is
The frequency of fundamental tone in an open organ pipe of length $0.48 m$ is $320 Hz.$ Speed of sound is $320 m/sec.$ Frequency of fundamental tone in closed organ pipe will be ... $Hz$
A source of sound $S$ of frequency $500 Hz$ situated between a stationary observer $O$ and a wall $W$, moves towards the wall with a speed of $2 m/s$. If the velocity of sound is $332 m/s$, then the number of beats per second heard by the observer is (approximately)