Physics-
General
Easy
Question
System is shown in figure. All the surfaces are smooth. Rod is moved by external agent with acceleration 9 m/s2 vertically downwards. Force exerted on the rod by the wedge will be:
- 120 N
- 200 N
- 135/2 N
- 225/2 N
The correct answer is: 135/2 N
Related Questions to study
Physics-
A stone is released from an elevator going up with an acceleration a. The acceleration of the stone after the release is
A stone is released from an elevator going up with an acceleration a. The acceleration of the stone after the release is
Physics-General
physics-
A ball is projected from point A with velocity 10m/sec. perpendicular to the inclined plane as in figure. Range of the ball on the incline is
A ball is projected from point A with velocity 10m/sec. perpendicular to the inclined plane as in figure. Range of the ball on the incline is
physics-General
physics-
Three projectiles A, B and C are thrown simultaneously from the same point in the same vertical plane. Their trajectories are shown in the figure. Then which of the following statement is false.
Three projectiles A, B and C are thrown simultaneously from the same point in the same vertical plane. Their trajectories are shown in the figure. Then which of the following statement is false.
physics-General
Physics-
A soap bubble has radius R and thickness d as shown. It colapses into a spherical drop. The ratio of excess pressure in the drop to the excess pressure inside the bubble is
A soap bubble has radius R and thickness d as shown. It colapses into a spherical drop. The ratio of excess pressure in the drop to the excess pressure inside the bubble is
Physics-General
physics-
Equal volumes of two immiscible liquids of densities r and 2r are filled in a vessel as shown in figure. Two small holes are punched at depth h/2 and 3h/2 from the surface of lighter liquid. If v1 and v2 are the velocities of a flux at these two holes, then v1/v2 is :
Equal volumes of two immiscible liquids of densities r and 2r are filled in a vessel as shown in figure. Two small holes are punched at depth h/2 and 3h/2 from the surface of lighter liquid. If v1 and v2 are the velocities of a flux at these two holes, then v1/v2 is :
physics-General
physics-
The diagram shows three concentric conducting spherical shells having radii T, 2R and 3R. The initial potential of each shell is as mentioned in the figure. If the inner most shell is earth then the charge present on its outer surface would be equal to
The diagram shows three concentric conducting spherical shells having radii T, 2R and 3R. The initial potential of each shell is as mentioned in the figure. If the inner most shell is earth then the charge present on its outer surface would be equal to
physics-General
physics-
The variation of gravitational field E and potential f as a function of x from the center of a uniform spherical mass distribution of radius R is correctly represented, from the following plots, by
The variation of gravitational field E and potential f as a function of x from the center of a uniform spherical mass distribution of radius R is correctly represented, from the following plots, by
physics-General
physics-
A (nonrotating) star collapses onto itself from an initial radius Ri with its mass remaining unchanged. Which curve in figure best gives the gravitational acceleration ag on the surface of the star as a function of the radius of the star during the collapse?
A (nonrotating) star collapses onto itself from an initial radius Ri with its mass remaining unchanged. Which curve in figure best gives the gravitational acceleration ag on the surface of the star as a function of the radius of the star during the collapse?
physics-General
physics-
Inside a charged thin conducting spherical shell of radius R, a point charge +Q is placed as shown in figure. The potential of the shell would be
Inside a charged thin conducting spherical shell of radius R, a point charge +Q is placed as shown in figure. The potential of the shell would be
physics-General
Physics-
Two objects of masses m and 4m are at rest at an infinite separation. They move towards each other under mutual gravitational attraction. If G is the universal gravitational constant, then at a separation r
Two objects of masses m and 4m are at rest at an infinite separation. They move towards each other under mutual gravitational attraction. If G is the universal gravitational constant, then at a separation r
Physics-General
physics-
A spherical hole of radius R 2 is excavated from the asteroid of mass M as shown in the figure. The gravitational acceleration at a point on the surface of the asteroid just above the excavation is
A spherical hole of radius R 2 is excavated from the asteroid of mass M as shown in the figure. The gravitational acceleration at a point on the surface of the asteroid just above the excavation is
physics-General
physics-
A point negative charge – Q is placed at a distance r from a dipole with dipole moment P as shown in figure. The force acting on the charge – Q is
A point negative charge – Q is placed at a distance r from a dipole with dipole moment P as shown in figure. The force acting on the charge – Q is
physics-General
physics-
A conducting sphere of radius R and charge Q is placed near a uniformly charged . Then non conducting infinitely large thin plate having surface charge density find the potential at point A (on the surface of sphere) due to charge on sphere (here)
A conducting sphere of radius R and charge Q is placed near a uniformly charged . Then non conducting infinitely large thin plate having surface charge density find the potential at point A (on the surface of sphere) due to charge on sphere (here)
physics-General
physics-
We have two electric dipoles. Each dipole consists of two equal and opposite point charges at the end of an insulating rod of length d. The dipoles are placed along the x-axis at a large distance r apart oriented as shown below:
The dipole on the left
We have two electric dipoles. Each dipole consists of two equal and opposite point charges at the end of an insulating rod of length d. The dipoles are placed along the x-axis at a large distance r apart oriented as shown below:
The dipole on the left
physics-General
physics-
An electric dipole, consisting of two equal and opposite point charges at the ends of a insulating rod, is placed in the electric field of a stationary positive point charge, as shown. The dipole is free to move. The dipole will
An electric dipole, consisting of two equal and opposite point charges at the ends of a insulating rod, is placed in the electric field of a stationary positive point charge, as shown. The dipole is free to move. The dipole will
physics-General