Physics-
General
Easy
Question
Assertion:Consider motion for a mass spring system under gravity, motion of M is not a simple harmonic motion unless Mg is negligibly small.
Reason : For simple harmonic motion acceleration must be proportional to displacement and is directed towards the mean position
- If both assertion and reason are true and the reason is the correct explanation of the assertion.
- If both assertion and reason are true but reason is not the correct explanation of the assertion.
- If assertion is true but reason is false.
- If assertion is false but reason is true.
The correct answer is: If assertion is false but reason is true.
Related Questions to study
Physics-
The variation of potential energy of harmonic oscillator is as shown in figure. The spring constant is
The variation of potential energy of harmonic oscillator is as shown in figure. The spring constant is
Physics-General
Physics-
Acceleration A and time period T of a body in S.H.M. is given by a curve shown below. Then corresponding graph, between kinetic energy (K.E.) and time t is correctly represented by
Acceleration A and time period T of a body in S.H.M. is given by a curve shown below. Then corresponding graph, between kinetic energy (K.E.) and time t is correctly represented by
Physics-General
Physics-
A body of mass 0.01 kg executes simple harmonic motion (S.H.M.) about 
under the influence of a force shown below : The period of the S.H.M. is
A body of mass 0.01 kg executes simple harmonic motion (S.H.M.) about under the influence of a force shown below : The period of the S.H.M. is
Physics-General
Physics-
The velocity-time diagram of a harmonic oscillator is shown in the adjoining figure. The frequency of oscillation is
The velocity-time diagram of a harmonic oscillator is shown in the adjoining figure. The frequency of oscillation is
Physics-General
Physics-
For a particle executing S.H.M. the displacement x is given by 
. Identify the graph which represents the variation of potential energy (P.E.) as a function of time t and displacement x
For a particle executing S.H.M. the displacement x is given by . Identify the graph which represents the variation of potential energy (P.E.) as a function of time t and displacement x
Physics-General
Physics-
The graph shows the variation of displacement of a particle executing S.H.M. with time. We infer from this graph that
The graph shows the variation of displacement of a particle executing S.H.M. with time. We infer from this graph that
Physics-General
Physics-
The displacement time graph of a particle executing S.H.M. is as shown in the figure
The corresponding force-time graph of the particle is
The displacement time graph of a particle executing S.H.M. is as shown in the figure
The corresponding force-time graph of the particle is
Physics-General
Physics-
The acceleration a of a particle undergoing S.H.M. is shown in the figure. Which of the labelled points corresponds to the particle being at – xmax
The acceleration a of a particle undergoing S.H.M. is shown in the figure. Which of the labelled points corresponds to the particle being at – xmax
Physics-General
Physics-
A particle of mass m is attached to three identical springs A, B and C each of force constant k a shown in figure. If the particle of mass m is pushed slightly against the spring A and released then the time period of oscillations is
A particle of mass m is attached to three identical springs A, B and C each of force constant k a shown in figure. If the particle of mass m is pushed slightly against the spring A and released then the time period of oscillations is
Physics-General
Physics-
One end of a spring of force constant k is fixed to a vertical wall and the other to a block of mass m resting on a smooth horizontal surface. There is another wall at a distance 
from the black. The spring is then compressed by 
and released. The time taken to strike the wall is
One end of a spring of force constant k is fixed to a vertical wall and the other to a block of mass m resting on a smooth horizontal surface. There is another wall at a distance from the black. The spring is then compressed by and released. The time taken to strike the wall is
Physics-General
Physics-
Two identical balls A and B each of mass 0.1 kg are attached to two identical massless springs. The spring mass system is constrained to move inside a rigid smooth pipe bent in the form of a circle as shown in the figure. The pipe is fixed in a horizontal plane. The centres of the balls can move in a circle of radius 0.06 m. Each spring has a natural length of 0.06p m and force constant 0.1N/m. Initially both the balls are displaced by an angle 
radian with respect to the diameter 
of the circle and released from rest. The frequency of oscillation of the ball B is
Two identical balls A and B each of mass 0.1 kg are attached to two identical massless springs. The spring mass system is constrained to move inside a rigid smooth pipe bent in the form of a circle as shown in the figure. The pipe is fixed in a horizontal plane. The centres of the balls can move in a circle of radius 0.06 m. Each spring has a natural length of 0.06p m and force constant 0.1N/m. Initially both the balls are displaced by an angle radian with respect to the diameter of the circle and released from rest. The frequency of oscillation of the ball B is
Physics-General
Physics-
On a smooth inclined plane, a body of mass M is attached between two springs. The other ends of the springs are fixed to firm supports. If each spring has force constant K, the period of oscillation of the body (assuming the springs as massless) is
On a smooth inclined plane, a body of mass M is attached between two springs. The other ends of the springs are fixed to firm supports. If each spring has force constant K, the period of oscillation of the body (assuming the springs as massless) is
Physics-General
Physics-
A cylindrical piston of mass M slides smoothly inside a long cylinder closed at one end, enclosing a certain mass of gas. The cylinder is kept with its axis horizontal. If the piston is disturbed from its equilibrium position, it oscillates simple harmonically. The period of oscillation will be
A cylindrical piston of mass M slides smoothly inside a long cylinder closed at one end, enclosing a certain mass of gas. The cylinder is kept with its axis horizontal. If the piston is disturbed from its equilibrium position, it oscillates simple harmonically. The period of oscillation will be
Physics-General
Physics-
Two blocks A and B each of mass m are connected by a massless spring of natural length L and spring constant K. The blocks are initially resting on a smooth horizontal floor with the spring at its natural length as shown in figure. A third identical block C also of mass m moves on the floor with a speed v along the line joining A and B and collides with A. Then
Two blocks A and B each of mass m are connected by a massless spring of natural length L and spring constant K. The blocks are initially resting on a smooth horizontal floor with the spring at its natural length as shown in figure. A third identical block C also of mass m moves on the floor with a speed v along the line joining A and B and collides with A. Then
Physics-General
Physics-
Two masses m1 and m2 are suspended together by a massless spring of constant K. When the masses are in equilibrium, m1 is removed without disturbing the system. The amplitude of oscillations is
Two masses m1 and m2 are suspended together by a massless spring of constant K. When the masses are in equilibrium, m1 is removed without disturbing the system. The amplitude of oscillations is
Physics-General
