A coin is placed on a horizontal platform which undergoes vertical simple harmonic motion of angular frequency $\omega $. The amplitude of oscillation is gradually increased. The coin will leave contact with the platform for the first time
  • A
    at the mean position of the platform
  • Bfor an amplitude of $\frac{g}{\omega ^2}$
  • Cfor an amplitude of $\frac{g^2}{\omega ^2}$
  • D
    at the highest position of the platform
AIIMS 2008,AIEEE 2006, 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
    Which of the following equation does not represent a simple harmonic motion
    View Solution
  • 2
    A graph of the square of the velocity against the square of the acceleration of a given simple harmonic motion is
    View Solution
  • 3
    A block of mass $1 \,kg$ attached to a spring is made to oscillate with an initial amplitude of $12\, cm$. After $2\, minutes$ the amplitude decreases to $6\, cm$. Determine the value of the damping constant for this motion. (take In $2=0.693$ )
    View Solution
  • 4
    The potential energy of a particle $\left(U_x\right)$ executing $S.H.M$. is given by
    View Solution
  • 5
    A mass $m$ is suspended from a spring of force constant $k$ and just touches another identical spring fixed to the floor as shown in the figure. The time period of small oscillations is 
    View Solution
  • 6
    Two identical spring of constant $K$ are connected in series and parallel as shown in figure. A mass $m$ is suspended from them. The ratio of their frequencies of vertical oscillations will be
    View Solution
  • 7
    A simple pendulum is vibrating in an evacuated chamber, it will oscillate with
    View Solution
  • 8
    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
  • 9
    A clock which keeps correct time at ${20^o}C$, is subjected to ${40^o}C$. If coefficient of linear expansion of the pendulum is $12 \times {10^{ - 6}}/^\circ C$. How much will it gain or loose in time
    View Solution
  • 10
    The maximum velocity of a particle, executing simple harmonic motion with an amplitude $7\ mm$, is $4.4\ m/s$. The period of oscillation is .... $sec$
    View Solution