Physics-
General
Easy
Question
The work done against gravity in moving the block of mass m a distance s up the slope as shown in the figure.
- mh
- mgs
- ms
- mgh
The correct answer is: mgh
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Two masses 
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. When the masses are in equilibrium, 
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A mass of 2.0 kg is put on a flat pan attached to a vertical spring fixed on the ground as shown in the figure. The mass of the spring and the pan is negligible. When pressed slightly and released the mass executes slightly and released the mass executes a simple harmonic motion. The spring constant is 
. What should be the minimum amplitude of the motion, so that the mass gets detached from the pan? (Take g=10 
)
A mass of 2.0 kg is put on a flat pan attached to a vertical spring fixed on the ground as shown in the figure. The mass of the spring and the pan is negligible. When pressed slightly and released the mass executes slightly and released the mass executes a simple harmonic motion. The spring constant is . What should be the minimum amplitude of the motion, so that the mass gets detached from the pan? (Take g=10 )
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Time period of a block suspended from the upper plate of a parallel plate capacitor by a spring of stiffness is 
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Statement-1: Susceptibility is expressed as Am-1.
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Statement-2: Magnetic flux is expressed as JA-1
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A weightless rigid rod AB of length l carries two equal masses 
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In a carom-board game the striker and the coins are identical and of mass m. In a particular hit the coin is hit when it is placed close to the edge of the board as shown in figure such that the coin travels parallel to the edge. If the striker is moving with speed v before the strike, then the net impulse on the strike during collision if its moves perpendicular to the edge is (all collisions the elastic)
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A box of mass M is placed on a smooth horizontal surface and ball of mass m is placed on smooth surface of the box. An impulse j is imparted in horizontal direction to the ball. Find the time period of oscillation (assuming all collision are elastic)
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A particle of mass 500 g is projected along x-axis with a velocity 6 m/s. It is acted upon by variable force acting along y-axis as shown in figure, then the velocity of the particle at 8 s
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A small ball of mass m is connected by an inextensible massless string of length l with another ball of mass 
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A simple pendulum is released from 
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Length of the pendulum, the gain kinetic energy at is
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The velocity-time diagram of a harmonic oscillator is shown in the adjoining figure. The frequency of oscillation is
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The acceleration 
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The 
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graph of a particle undergoing simple harmonic motion is shown below. The acceleration of the particle at 
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In an arrangement shown here mass 1 kg lying on a smooth surface is thrown with velocity 8 m/s towards a bob of mass 4 kg initially at rest. After the collision mass 1 kg comes to rest. Find coefficient of restitution and the height to which the bob will rise after the collision. Assuming collision to be head on. 
In an arrangement shown here mass 1 kg lying on a smooth surface is thrown with velocity 8 m/s towards a bob of mass 4 kg initially at rest. After the collision mass 1 kg comes to rest. Find coefficient of restitution and the height to which the bob will rise after the collision. Assuming collision to be head on.
physics-General
