Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
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
14
Feb
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 A [...]
A block of mass m is on an inclined plane of angle θ. The coefficient of friction between the block and the plane is μ and tan θ>μ. The block is held stationary by applying a force P parallel to the plane. The direction of force pointing up the plane is taken to be positive. As P is varied from P1=mg (sinθ−μcosθ) to P2=mg (sinθ+μcosθ), the frictional force f versus P graph will look like
14
Feb
A block of mass m is on an inclined plane of angle θ. The coefficient of friction between the block and the plane is μ and tan θ>μ. The block is held stationary by applying a force P parallel to the plane. The direction of force pointing up the plane is taken to be positive. [...]
A piece of wire is bent in the shape of a parabola y kx^2 (y-axis vertical) with a bead of mass m on it. The bead can slide on the wire without friction. It stays at the lowest point of the parabola when the wire is at rest. The wire is now accelerated parallel to the x-axis with a constant acceleration a. The distance of the new equilibrium position of the bead, where the bead can stay at rest with respect to the wire, from the y-axis is
14
Feb
A piece of wire is bent in the shape of a parabola y kx^2 (y-axis vertical) with a bead of mass m on it. The bead can slide on the wire without friction. It stays at the lowest point of the parabola when the wire is at rest. The wire is now accelerated parallel to [...]
Two blocks of masses 2.9 kg and 1.9 kg are suspended from a rigid support S by two inextensible wires each of length 1 m. The upper wire has negligible mass and the lower wire has a uniform mass of 0.2 kg/m. The whole system of blocks, wires and support have an upward acceleration of 0.2 m/s^2.The acceleration due to gravity is 9.8 m?s^2.
14
Feb
Two blocks of masses 2.9 kg and 1.9 kg are suspended from a rigid support S by two inextensible wires each of length 1 m. The upper wire has negligible mass and the lower wire has a uniform mass of 0.2 kg/m. The whole system of blocks, wires and support have an upward acceleration of [...]
A reference frame attached to the earth :A. is an inertial frame by definition B. cannot be an inertial frame because the earth is revolving round the sun C. is an inertial frame because Newton’s laws are applicable in this frame D. cannot be an inertial frame because the earth is rotating about its own axis
14
Feb
A reference frame attached to the earth :A. is an inertial frame by definition B. cannot be an inertial frame because the earth is revolving round the sun C. is an inertial frame because Newton’s laws are applicable in this frame D. cannot be an inertial frame because the earth is rotating about its own [...]
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A simple pendulum of length L and mass (bob) M is oscillating in a plane about a vertical line between angular limit −ϕ and +ϕ. For an angular displacement θ(|θ|<ϕ) ,
the tension in the string and the velocity of the bob are T and V respectively. The following relations hold good under the above conditions: ,
A particle is moving along a circular path with a constant speed 10ms−1.What is the magnitude of the change in velocity of the particle ,when it moves through an angle of 60∘ around the center of the circle ?
14
Feb
A particle is moving along a circular path with a constant speed 10ms−1.What is the magnitude of the change in velocity of the particle ,when it moves through an angle of 60∘ around the center of the circle ? A particle is moving along a circular path with a constant speed 10ms^−1.What is the magnitude [...]
Two particles A, B are moving on two concentric circles of radii R 1 and R 2 with equal angular speed ω. At t = 0, their positions and direction of motion are shown in the figure.The relative velocity is given by:
14
Feb
Two particles A, B are moving on two concentric circles of radii R 1 and R 2 with equal angular speed ω. At t = 0, their positions and direction of motion are shown in the figure.The relative velocity is given by: B are moving on two concentric circles of radii R 1 and R [...]
A block of mass 10 kg is kept on a rough inclined plane as shown in the figure. A force of 3 N is applied on the block. The coefficient of static friction between the plane and the block is 0.6. What should be the minimum value of force P, such that the block does not move downward? (take g = 10 ms⁻²)
14
Feb
A block of mass 10 kg is kept on a rough inclined plane as shown in the figure. A force of 3 N is applied on the block. The coefficient of static friction between the plane and the block is 0.6. What should be the minimum value of force P, such that the block does [...]
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A block kept on a rough inclined plane ,
A mass of 10 kg is suspended vertically by a rope from the roof. When a horizontal force is applied on the rope at some point ,
As shown in the figure ,
the magnitude of the force applied is (g=10 ms 2) ,
the rope deviated at an angle of 45 o at the roof point. If the suspended mass is at equilibrium ,
A block kept on a rough inclined plane ,as shown in the figure, remains at rest up to a maximum force 2 N down the inclined plane. The maximum external force up the inclined plane that does not move the block is 10 N. The coefficient of static friction between the block and the plane is : [Taking g=10 m/s^2 ].
14
Feb
A block kept on a rough inclined plane ,as shown in the figure, remains at rest up to a maximum force 2 N down the inclined plane. The maximum external force up the inclined plane that does not move the block is 10 N. The coefficient of static friction between the block and the plane [...]
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A block kept on a rough inclined plane ,
A mass of 10 kg is suspended vertically by a rope from the roof. When a horizontal force is applied on the rope at some point ,
As shown in the figure ,
the magnitude of the force applied is (g=10 ms 2) ,
the rope deviated at an angle of 45 o at the roof point. If the suspended mass is at equilibrium ,
Two blocks A and B of masses m A =1 kg and m B =3 kg are kept on the table as shown in figure. The coefficient of friction between A and B is 0.2 and between B and the surface of the table is also 0.2. The maximum force F that can be applied on B horizontally, so that the block A does not slide over the block B is : (Take g=10 m/s 2)
14
Feb
Two blocks A and B of masses m A =1 kg and m B =3 kg are kept on the table as shown in figure. The coefficient of friction between A and B is 0.2 and between B and the surface of the table is also 0.2. The maximum force F that can be applied [...]