MCQ
The air column in a pipe open at both ends is oscillating with certain frequency. Which of the given statement $(s)$ is/ are correct for the open air column at both ends?
  • A
    Each end of the pipe acts is an a node.
  • B
    An open air column at both ends generates all harmonics.
  • C
    Each end of the pipe is a node nine is a node.
  • Both $(a)$ and $(b).$

Answer

Correct option: D.
Both $(a)$ and $(b).$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

The temperature at which the reading of a Fahrenheit thermometer will be double that of centigrade thermometer is ........ $^o$
A car moving with a speed of $40\, km/h$ can be stopped by applying brakes after atleast $2\, m$. If the same car is moving with a speed of $80 \,km/h$, what is the minimum stopping distance............$m$
A water cooler of storage capacity $120$ litres can cool water at a constant rate of $P$ watts. In a closed circulation system (as shown schematically in the figure), tr e wat'r from the cooler is used to cool an external device that generates constantly $3 \mathrm{~kW}$ of heat (thermal load). The temperature of water fed into the device cannot exceed $30^{\circ} \mathrm{C}$ and the e.tire stored $120$ litres of water is initially cooled to $10^{\circ} \mathrm{C}$. The entire system is thermally insulat $\mathrm{d}$. The minimum value of $P$ (in watts) for which the device can be operated for $3$ hours is

(Specific heat of water is $4.2 \mathrm{~kJ}^{-1} \mathrm{~kg}^{-1}$ and the density of water is $10.$) $0 \mathrm{k}^2 \mathrm{~m}^{-3}$ )

On the horizontal surface of a truck a block of mass $1 \;kg$ is placed $(\mu=0.6)$ and truck is moving with acceleration $5\; m / sec ^2$ then the frictional force on the block will be
If the length of the second's hand in a stop clock is $3 \,cm$ the angular velocity and linear velocity of the tip is
A man balances himself in a horizontal position by pushing his hands and feet against two parallel walls. His centre of mass lies midway between the walls. The coefficients of friction at the walls are equal. Which of the following is not correct?
Consider a point $P$ on the circumference of a disc rolling along a horizontal surface. If $R$ is the radius of the disc, the distance through which $P$ moves in one full rotation of the disc  is:
A river is flowing from $W$ to $E$ with a speed of  $5 \,m/min$. A man can swim in still water with a velocity $10\, m/min$. In which direction should the man swim so as to take the shortest possible path to go to the south.
The velocity-time plot for a particle moving on a straight line is shown in the figure:
The atmosphere is held to the earth by