If the length of a pendulum is made $9$ times and mass of the bob is made $4$ times then the value of time period becomes
  • A$3T$
  • B$\frac{3}{2}T$
  • C$4T$
  • D$2T$
Easy
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 time period of a particle executing $S.H.M.$ is $8 \,s$. At $t=0$ it is at the mean position. The ratio of distance covered by the particle in $1^{\text {st }}$ second to the $2^{\text {nd }}$ second is .............. $s$
    View Solution
  • 2
    To show that a simple pendulum executes simple harmonic motion, it is necessary to assume that
    View Solution
  • 3
    A simple pendulum is vibrating in an evacuated chamber, it will oscillate with
    View Solution
  • 4
    The displacement time equation of a particle executing $SHM$ is : $x = A \,sin\,(\omega t + \phi )$. At time $t = 0$ position of the particle is $x = A/2$ and it is moving along negative $x-$ direction. Then the angle $\phi $ can be
    View Solution
  • 5
    Two identical springs of spring constant $'2k'$ are attached to a block of mass $m$ and to fixed support (see figure). When the mass is displaced from equilibrium position on either side, it executes simple harmonic motion. The time period of oscillations of this sytem is ...... .
    View Solution
  • 6
    A rod of mass $‘M’$ and length $‘2L’$ is suspended at its middle by a wire. It exhibits torsional oscillations; If two masses each of $‘m’$ are attached at distance $‘L/2’$ from its centre on both sides, it reduces the oscillation frequency by $20\%$. The value of ratio $m/M$ is close to
    View Solution
  • 7
    A mass $M$ is suspended from a spring of negligible mass. The spring is pulled a little and then released so that the mass executes simple harmonic oscillations with a time period $T$. If the mass is increased by m then the time period becomes $\left( {\frac{5}{4}T} \right)$. The ratio of $\frac{m}{{M}}$ is
    View Solution
  • 8
    The effective spring constant of two spring system as shown in figure will be 
    View Solution
  • 9
    A body executes sample harmonic motion under the action of a force $F_1$ with a time period $(4 / 5)\  sec$. If the force is changed to $F_ 2$ it executes $SHM$ with time period $(3 / 5)\  sec$. If both the forces $F_1$ and $F_2$ act simultaneously in the same direction on the body, it's time period (in $second$) is
    View Solution
  • 10
    Time period of a simple pendulum will be double, if we
    View Solution