Two wires are in unison. If the tension in one of the wires is increased by $2\%, 5$ beats are produced per second. The initial frequency of each wire is  .... $Hz$
  • A$200$
  • B$400 $
  • C$500$
  • D$1000$
Diffcult
art

Download our app
and get started for free

Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*

Similar Questions

  • 1
    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  ... $Hz$
    View Solution
  • 2
    A bat moving at $10\,ms^{-1}$ towards a wall sends a sound signal of $8000\,Hz$ towards it. On reflection it hears a sound of frequency $f$. The value of $f$ in $Hz$ is close to (speed of sound $= 320\,ms^{-1}$ )
    View Solution
  • 3
    A plane sound waves passes from medium $1$ into medium $2$. The speed of sound in medium $1$ is $200\,m/s$ and in medium $2$ is $100 \,m/s$. The ratio of amplitude of the transmitted wave to that of incident wave is :-
    View Solution
  • 4
    In a closed organ pipe of length $105 \,cm$, standing waves are set up corresponding to third overtone. What distance from the closed end, a pressure node is formed .............. $cm$
    View Solution
  • 5
    A stretched string is vibrating in its $5^{th}$ harmonic as shown. Consider a particle $1(figure)$. At an instant this particle is at mean positions and is moving towards its negative extreme. Which of the following set of particles, are in same phase with particle $1$
    View Solution
  • 6
    Two tuning forks $A$ and $B$ produce $8\  beats/s$ when sounded together. A gas column $37.5\  cm$  long in a pipe closed at one end resonate to its fundamental mode with fork $A$ whereas a column of length $38.5\  cm$ of the same gas in a similar pipe is required for a similar resonance with fork $B$. The frequencies of these two tuning forks, are 
    View Solution
  • 7
    A device used for investigating the vibration of a fixed string or wire is
    View Solution
  • 8
    When sound waves travel from air to water, which of the following remains constant
    View Solution
  • 9
    If given wave has propagation constant $\frac{5 \pi}{7}\, rad/m$ then phase difference between two particle having distance difference $\frac{49}{22} \,m$ is ..... $rad.$
    View Solution
  • 10
    A block $\mathrm{M}$ hangs vertically at the bottom end of a uniform rope of constant mass per unit length. The top end of the rope is attached to a fixed rigid support at $O$. A transverse wave pulse (Pulse $1$ ) of wavelength $\lambda_0$ is produced at point $O$ on the rope. The pulse takes time $T_{O A}$ to reach point $A$. If the wave pulse of wavelength $\lambda_0$ is produced at point $A$ (Pulse $2$) without disturbing the position of $M$ it takes time $T_{A 0}$ to reach point $O$. Which of the following options is/are correct?

    (image)

    [$A$] The time $\mathrm{T}_{A 0}=\mathrm{T}_{\mathrm{OA}}$

    [$B$] The velocities of the two pulses (Pulse $1$ and Pulse $2$) are the same at the midpoint of rope.

    [$C$] The wavelength of Pulse $1$ becomes longer when it reaches point $A$.

    [$D$] The velocity of any pulse along the rope is independent of its frequency and wavelength.

    View Solution