JEE Questions for Physics Oscillations Quiz 7 - MCQExams.com

A body of mass 1 kg is executing simple harmonic motion. Its displacement y (cm) at t seconds is given by y = 6 sin (100t + π /4). Its maximum kinetic energy is
  • 6 J
  • 18 J
  • 24 J
  • 36 J
A particle is executing simple harmonic motion with frequency f. The frequency at which its kinetic energy change into potential energy is
  • f/2
  • f
  • 2f
  • 4f
The total energy of a particle executing S.H.M. is 80 J. What is the potential energy when the particle is at a distance of 3/4 of amplitude from the mean position
  • 60 J
  • 10 J
  • 40 J
  • 45 J
In a simple harmonic oscillator, at the mean position
  • Kinetic energy is minimum, potential energy is maximum
  • Both kinetic and potential energies are maximum
  • Kinetic energy is maximum, potential energy is minimum
  • Both kinetic and potential energies are minimum
When a mass M is attached to the spring of force constant k, then the spring stretches by l. If the mass oscillates with amplitude l, what will be maximum potential energy stored in the spring

  • Physics-Oscillations-84576.png
  • 2)
    Physics-Oscillations-84577.png

  • Physics-Oscillations-84578.png

  • Physics-Oscillations-84579.png
A body executes simple harmonic motion. The potential energy (P.E.), the kinetic energy (K.E.) and total energy (T.E.) are measured as a function of displacement x. Which of the following statements is true
  • P.E. is maximum when x = 0
  • K.E. is maximum when x = 0
  • T.E. is zero when x = 0
  • K.E. is maximum when x is maximum
The total energy of a particle, executing simple harmonic motion is
  • ∝ x
  • ∝ x2
  • Independent of x
  • ∝ x2

Physics-Oscillations-84915.png
  • 2/3
  • 5/6
  • 6/5
  • 3/2
The kinetic energy of a particle executing S.H.M. is 16 J when it is at its mean position. If the mass of the particle is 0.32 kg, then what is the maximum velocity of the particle
  • 5 m/s
  • 15 m/s
  • 10 m/s
  • 20 m/s
A particle starts simple harmonic motion from the mean position. Its amplitude is a and total energy E. At one instant its kinetic energy is 3E/4. Its displacement at that instant is

  • Physics-Oscillations-84583.png
  • 2)
    Physics-Oscillations-84584.png

  • Physics-Oscillations-84585.png

  • Physics-Oscillations-84586.png
A particle executes simple harmonic motion with a frequency f. The frequency with which its kinetic energy oscillates is
  • f/2
  • f
  • 2f
  • 4f
A particle of mass m is hanging vertically by an ideal spring of force constant K. If the mass is made to oscillate vertically, its total energy is
  • Maximum at extreme position
  • Maximum at mean position
  • Minimum at mean position
  • Same at all position
A body is moving in a room with a velocity of 20 m/s perpendicular to the two walls separated by 5 meters. There is no friction and the collisions with the walls are elastic. The motion of the body is
  • Not periodic
  • Periodic but not simple harmonic
  • Periodic and simple harmonic
  • Periodic with variable time period
Starting from the origin a body oscillates simple harmonically with a period of 2 s. After what time will its kinetic energy be 75% of the total energy

  • Physics-Oscillations-84589.png
  • 2)
    Physics-Oscillations-84590.png

  • Physics-Oscillations-84591.png

  • Physics-Oscillations-84592.png
The total energy of a simple harmonic oscillator is proportional to
  • Square root of displacement
  • Velocity
  • Frequency
  • Square of the amplitude
If a simple pendulum of length L has maximum angular displacement α, then the maximum kinetic energy of bob of mass M is

  • Physics-Oscillations-84595.png
  • 2)
    Physics-Oscillations-84596.png

  • Physics-Oscillations-84597.png

  • Physics-Oscillations-84598.png
A particle moves such that its acceleration a is given by a = – bx, where x is the displacement from equilibrium position and b is a constant. The period of oscillation is

  • Physics-Oscillations-84600.png
  • 2)
    Physics-Oscillations-84601.png

  • Physics-Oscillations-84602.png

  • Physics-Oscillations-84603.png

Physics-Oscillations-84605.png

  • Physics-Oscillations-84606.png
  • 2)
    Physics-Oscillations-84607.png

  • Physics-Oscillations-84608.png

  • Physics-Oscillations-84609.png
The motion of a particle executing S.H.M. is given by x = 0.01 sin 100 π(t + 0.5), where x is in metres and time is in seconds. The time period is
  • 0.01 s
  • 0.02 s
  • 0.1 s
  • 0.2 s
The kinetic energy of a particle executing S.H.M. is 16 J when it is in its mean position. If the amplitude of oscillations is 25 cm and the mass of the particle is 5.12 kg, the time period of its oscillation is

  • Physics-Oscillations-84612.png
  • 2)
    Physics-Oscillations-84613.png

  • Physics-Oscillations-84614.png

  • Physics-Oscillations-84615.png
The acceleration of a particle performing S.H.M. is 12 cm/s2 at a distance of 3 cm from the mean position. Its time period is
  • 0.5 s
  • 1.0 s
  • 2.0 s
  • 3.14 s

Physics-Oscillations-84618.png
  • 0.5 Hz
  • 1.0 Hz
  • 1.5 Hz
  • 2.0 Hz
What is constant in S.H.M.
  • Restoring force
  • Kinetic energy
  • Potential energy
  • Periodic time
If a simple harmonic oscillator has got a displacement of 0.02 m and acceleration equal to 2.0 ms–2 at any time, the angular frequency of the oscillator is equal to
  • 10 rad s–1
  • 0.1 rad s–1
  • 100 rad s–1
  • 1 rad s–1
A particle executes S.H.M. in a line 4 cm long. Its velocity when passing through the centre of line is 12 cm/s. The period will be
  • 2.047 s
  • 1.047 s
  • 3.047 s
  • 0.047 s
Two particle A and B execute simple harmonic motion of period T and 5T/4. They start from mean position. The phase difference between them when the particle A complete an oscillation will be
  • π/2
  • 0
  • 2 π /5
  • π /4
A simple harmonic wave having an amplitude a and time period T is represented by the equation y = 5 sin π(t +m. Then the value of amplitude (a) in (m) and time period (T) in second are
  • a = 10, T = 2
  • a = 5, T = 1
  • a = 10, T = 1
  • a = 5, T = 2
A rectangular block of mass m and area of cross-section A floats in a liquid of density ρ. If it is given a small vertical displacement from equilibrium it undergoes oscillation with a time period T. Then

  • Physics-Oscillations-84624.png
  • 2)
    Physics-Oscillations-84625.png

  • Physics-Oscillations-84626.png

  • Physics-Oscillations-84627.png

Physics-Oscillations-84629.png

  • Physics-Oscillations-84630.png
  • 2)
    Physics-Oscillations-84631.png

  • Physics-Oscillations-84632.png

  • Physics-Oscillations-84633.png
A ball of mass (m) 0.5 kg is attached to the end of a string having length (L) 0.5 m. The ball is rotated on a horizontal circular path about vertical axis. The maximum tension that the string can bear is 324 N. The maximum possible value of angular velocity of ball (in radian/s) is
Physics-Oscillations-84634.png
  • 9
  • 18
  • 27
  • 36
How does the time period of pendulum vary with length

  • Physics-Oscillations-84636.png
  • 2)
    Physics-Oscillations-84637.png

  • Physics-Oscillations-84638.png

  • Physics-Oscillations-84639.png
The mass and diameter of a planet are twice those of earth. The period of oscillation of pendulum on this planet will be (If it is a second\'s pendulum on earth)

  • Physics-Oscillations-84641.png
  • 2)
    Physics-Oscillations-84642.png
  • 2 s

  • Physics-Oscillations-84643.png
A simple pendulum is set up in a trolley which moves to the right with an acceleration a on a horizontal plane. Then the thread of the pendulum in the mean position makes an angle 0 with the vertical

  • Physics-Oscillations-84645.png
  • 2)
    Physics-Oscillations-84646.png

  • Physics-Oscillations-84647.png

  • Physics-Oscillations-84648.png

Physics-Oscillations-84650.png

  • Physics-Oscillations-84651.png
  • 2)
    Physics-Oscillations-84652.png

  • Physics-Oscillations-84653.png

  • Physics-Oscillations-84654.png
A second\'s pendulum is placed in a space laboratory orbiting around the earth at a height 3R, where R is the radius of the earth. The time period of the pendulum is
  • Zero
  • 2)
    Physics-Oscillations-84656.png
  • 4 s
  • Infinite
The bob of a simple pendulum of mass m and total energy E will have maximum linear momentum equal to

  • Physics-Oscillations-84658.png
  • 2)
    Physics-Oscillations-84659.png
  • 2mE
  • mE2
Choose the correct statement
  • Time period of a simple pendulum depends on amplitude
  • Time shown by a spring watch varies with acceleration due to gravity g
  • In a simple pendulum time period varies linearly with the length of the pendulum
  • The graph between length of the pendulum and time period is a parabola
What is the velocity of the bob of a simple pendulum at its mean position, if it is able to rise to vertical height of 10 cm (g = 9.8 m/s2)
Physics-Oscillations-84662.png
  • 2.2 m/s
  • 1.8 m/s
  • 1.4 m/s
  • 0.6 m/s
Identify correct statement among the following
  • The greater the mass of a pendulum bob, the shorter is its frequency of oscillation
  • A simple pendulum with a bob of mass M swings with an angular amplitude of 40°. When its angular amplitude is 20°, the tension in the string is less than Mg cos 20°
  • As the length of a simple pendulum is increased, the maximum velocity of its bob during its oscillation will decrease
  • The fractional change in the time period of a pendulum on changing the temperature is independent of the length of the pendulum
The bob of a pendulum of length l is pulled aside from its equilibrium position through an angle θ and then released. The bob will then pass through its equilibrium position with a speed v, where v equals

  • Physics-Oscillations-84664.png
  • 2)
    Physics-Oscillations-84665.png

  • Physics-Oscillations-84666.png

  • Physics-Oscillations-84667.png
A pendulum bob has a speed of 3 m/s at its lowest position. The pendulum is 0.5 m long. The speed of the bob, when the length makes an angle of 60° to the vertical, will be (If g = 10 m/s2)
  • 3 m/s
  • 2)
    Physics-Oscillations-84669.png

  • Physics-Oscillations-84670.png
  • 2 m/s
The time period of a simple pendulum is 2 s. If its length is increased 4 times, then its period becomes
  • 16 s
  • 12 s
  • 8 s
  • 4 s
In a simple pendulum, the period of oscillation T is related to length of the pendulum l as

  • Physics-Oscillations-84673.png
  • 2)
    Physics-Oscillations-84674.png

  • Physics-Oscillations-84675.png

  • Physics-Oscillations-84676.png

Physics-Oscillations-84917.png
  • 6
  • 3
  • 5
  • 4
A pendulum has time period T. If it is taken on to another planet having acceleration due to gravity half and mass 9 times that of the earth then its time period on the other planet will be

  • Physics-Oscillations-84678.png
  • T

  • Physics-Oscillations-84679.png

  • Physics-Oscillations-84680.png
A plate oscillates with time period ‘T’. Suddenly, another plate put on the first plate, then time period
  • Will decrease
  • Will increase
  • Will be same
  • None of these
The time period of a simple pendulum when it is made to oscillate on the surface of moon
  • Increases
  • Decreases
  • Remains unchanged
  • Becomes infinite
A simple pendulum is attached to the roof of a lift. If time period of oscillation, when the lift is stationary is T. Then frequency of oscillation, when the lift falls freely, will be
  • Zero
  • T
  • 1/T
  • None of these
Length of a simple pendulum is l and its maximum angular displacement is θ, then its maximum K.E. is
  • mgl sin θ
  • mgl(1 + sin θ)
  • mgl(1 + cos θ)
  • mg1(1 – cos θ)
The height of a swing changes during its motion from 0.1 m to 2.5 m. The minimum velocity of a boy who swings in this swing is
  • 5.4 m/s
  • 4.95 m/s
  • 3.14 m/s
  • Zero
0:0:1


Answered Not Answered Not Visited Correct : 0 Incorrect : 0

Practice Physics Quiz Questions and Answers