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In the pulley arrangement shown in Fig the pulley p2 is movable .Assuming the coefficient of friction between m and surface to be μ the minimum value of M for which m is at rest is
20
Oct
In the pulley arrangement shown in Fig the pulley p2 is movable .Assuming the coefficient of friction between m and surface to be μ the minimum value of M for which m is at rest is In the pulley arrangement shown in Fig the pulley p2 is movable .Assuming the coefficient of friction between m [...]
Two blocks (m and M) are arranged as in figure. There is friction between ground and M only and other surfaces are frictionless. The coefficient of friction between ground and M is u = 0.25. The maximum ratio of m and M (m/M) so that the system remains is at rest –
20
Oct
Two blocks (m and M) are arranged as in figure. There is friction between ground and M only and other surfaces are frictionless. The coefficient of friction between ground and M is u = 0.25. The maximum ratio of m and M (m/M) so that the system remains is at rest – A block of [...]
A triangular prism of mass M with a block of mass m placed on it is released from rest on a smooth inclined plane of inclination θ. The block does not slip on the prism. Then:
20
Oct
A triangular prism of mass M with a block of mass m placed on it is released from rest on a smooth inclined plane of inclination θ. The block does not slip on the prism. Then: A triangular prism of mass M with a block of mass m placed on it is released from rest [...]
In the Fig, the block of mass m is at rest relative to the wedge of mass M and the wedge is at rest with respect to ground. This implies that
20
Oct
In the Fig, the block of mass m is at rest relative to the wedge of mass M and the wedge is at rest with respect to ground. This implies that In the fig the block of mass m is at rest relative to the wedge of mass M and the wedge is at rest [...]
A uniform chain is placed at rest on a rough surface of base length 1 and height h on an irregular surface as shown in figure Then the minimum coefficient of friction between the chain and the surface must be equal to
20
Oct
A uniform chain is placed at rest on a rough surface of base length 1 and height h on an irregular surface as shown in figure Then the minimum coefficient of friction between the chain and the surface must be equal to A block of mass m if coefficient of friction between the block and [...]
If the coefficient of friction between all surface figure is 0.4 then find the minimum force F to have equilibrium of the system.
20
Oct
If the coefficient of friction between all surface figure is 0.4 then find the minimum force F to have equilibrium of the system. If the coefficient of friction between all surface figure is 0.4 then find the minimum force F to have equilibrium of the system. October 20, 2020 Category: Cengage JEE Mains Physics by [...]
The half-life of a radioactive nuclide is 20 h. It is found that the fraction (1/x) of original activity remains after 40 hours ? What is the value of x ?
20
Oct
The half-life of a radioactive nuclide is 20 h. It is found that the fraction (1/x) of original activity remains after 40 hours ? What is the value of x ? The half-life of a radioactive nuclide is 20 h. It is found that the fraction (1/x) of original activity remains after 40 hours ? [...]
Block A as shown in Fig weighs `2.0 N` and block B weighs `6.0 N` The coefficient of kinetic friction between all surface is `0.25` Find the magnitude of the horizontal force necessary to drag block B to the left at constant speed if A and B are connected by a light , flexible cord passing around a fixed, frictionless pulley.
20
Oct
Block A as shown in Fig weighs `2.0 N` and block B weighs `6.0 N` The coefficient of kinetic friction between all surface is `0.25` Find the magnitude of the horizontal force necessary to drag block B to the left at constant speed if A and B are connected by a light , flexible cord [...]
Nuclei A and B convert into a stable nucleus C. Nucleus A is converted into C by emitting 2 alpha particles and 3 beta particles. Nucleus B is converted into C by emitting one alpha particle and 5 beta particles.
20
Oct
Nuclei A and B convert into a stable nucleus C. Nucleus A is converted into C by emitting 2 alpha particles and 3 beta particles. Nucleus B is converted into C by emitting one alpha particle and 5 beta particles. the numbers of nuclei of A and B are 4 N0 and 2N0 respectively then [...]
A wooden stick of length 3l is rotated about an end with constant angular velocity ω in a uniform magnetic field B perpendicular to the plane of motion. If the upper one-third of its length is coated with copper, the potential difference across the whole length of the stick is
20
Oct
A wooden stick of length 3l is rotated about an end with constant angular velocity ω in a uniform magnetic field B perpendicular to the plane of motion. If the upper one-third of its length is coated with copper, the potential difference across the whole length of the stick is the current in wire AB [...]