What is the base frequency if a pipe gives notes of frequencies $425, 255$ and $595$ and decide whether it is closed at one end or open at both ends
  • A$17,$ closed
  • B$85,$ closed
  • C$17,$ open
  • D$85,$ open
Medium
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 tension in a wire is decreased by $19 \%$. The percentage decrease in frequency will be ......... $\%$
    View Solution
  • 2
    Two cars are moving on two perpendicular roads towards a crossing with uniform speeds of $72\; km/hr$ and $36\; km/hr$. If first car blows horn of frequency $280\; Hz,$ then the frequency of horn heard by the driver of second car when line joining the cars make $45^o$ angle with the roads; will be .... $Hz$
    View Solution
  • 3
    A man $x$ can hear only upto $10 kHz$ and another man $y$ upto $20 kHz$. A note of frequency $500 Hz$ is produced before them from a stretched string. Then
    View Solution
  • 4
    $A$ source $S$ of frequency $f_0$ and an observer $O$, moving with speeds $v_1$ and $v_2$ respectively, are movinng away from each other. When they are separated by distance a $(t =0)$, a pulse is emitted by the source. This pulse is received by $O$ at time $t_1$ then $t_1$, is equal to
    View Solution
  • 5
    A standing wave is represented by

    $Y = A\sin (100t)\cos (0.01x)$

    where $Y$ and $A$ are in millimetre, $t$ is in seconds and $x$ is in metre. The velocity of wave is ..... $m/s$

    View Solution
  • 6
    It is possible to recognise a person by hearing his voice even if he is hidden behind a wall. This is due to the fact that his voice
    View Solution
  • 7
    With what velocity an observer should move relative to a stationary source so that he hears a sound of double the frequency of source
    View Solution
  • 8
    A car $'A'$ chasing another car $'B'$ with a speed of $20\, m/s$ sounding a horn of $180\, Hz$. While both cars are moving towards a stationary siren of frequency $170\, Hz$. What is the speed of car $B$ so that it can't hear any beat ....$m/s$ (speed of sound $= 340\, m/s$)
    View Solution
  • 9
    A plane progressive wave is given by $y=2 \cos 2 \pi(330 t-x) m$. The frequency of the wave is:
    View Solution
  • 10
    A whistle producing sound waves of frequencies $9500\ Hz$ and above is approaching a stationary person with speed $v\ ms^{-1}$. The velocity of sound in air is $300\ ms^{-1}$. If the person can hear frequencies upto a maximum of $10,000\ Hz$, the maximum value of $v$ upto which he can hear whistle is ... $ms^{-1}$
    View Solution