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The loaded bucket of a crane achievers a maximum velocity 5 m/s in some time at a uniform rate and then takes half of this time to stop at a uniform rate and then takes half of this time to stop at a uniform
18
Sep
The loaded bucket of a crane achievers a maximum velocity 5 m/s in some time at a uniform rate and then takes half of this time to stop at a uniform rate and then takes half of this time to stop at a uniform The balls are released from the top of a tower of [...]
Assertion : Four point masses each of mass m are placed at points 1, 2, 3 and 6 of a regular hexagon of side a. Then the gravitational field at the centre of hexagon is Gm/a^2 Reason : The field strength due to masses at 3 and 6 are cancelled out.
18
Sep
Assertion : Four point masses each of mass m are placed at points 1, 2, 3 and 6 of a regular hexagon of side a. Then the gravitational field at the centre of hexagon is Gm/a^2 Reason : The field strength due to masses at 3 and 6 are cancelled out. 2 3 and 6 [...]
A particle is projected vertically form the ground takes time t1 = 1 s upto point A, t2 = 3 s from point A to B, and time t3 = 4 s from point B to highest point. Find the height of the middle point
18
Sep
A particle is projected vertically form the ground takes time t1 = 1 s upto point A, t2 = 3 s from point A to B, and time t3 = 4 s from point B to highest point. Find the height of the middle point A particle is projected vertically form the ground takes time [...]
Assertion : The centre of semicircular ring of mass m and radius R is the origin O. The potential at origin is −Gm/R Reason : The gravitational field strength is towards Y-axis.
18
Sep
Assertion : The centre of semicircular ring of mass m and radius R is the origin O. The potential at origin is −Gm/R Reason : The gravitational field strength is towards Y-axis. Assertion : The centre of semicircular ring of mass m and radius R is the origin O. The potential at origin is −Gm/R [...]
A ball is released form the top of a multistory tower. The ball takes 1 s to fall past a floor of the tower 8 m height of a floor some distance from the top of the tower . Find the velocities of the ball
18
Sep
A ball is released form the top of a multistory tower. The ball takes 1 s to fall past a floor of the tower 8 m height of a floor some distance from the top of the tower . Find the velocities of the ball The balls are released from the top of a tower [...]
Assertion : Gravitational force between two masses in air is F. If they are immersed in water, force will remain F Reason : Gravitational force does not depend on the medium between the masses.
18
Sep
Assertion : Gravitational force between two masses in air is F. If they are immersed in water, force will remain F Reason : Gravitational force does not depend on the medium between the masses. Assertion : Gravitational force between two masses in air is F. If they are immersed in water force will remain F [...]
A car moves in a straight line, the car accelerates from rest with a constant acceleration alpha on a straight road. After gaining a velocity v, the car moves with that velocity for sometime.
18
Sep
A car moves in a straight line, the car accelerates from rest with a constant acceleration alpha on a straight road. After gaining a velocity v, the car moves with that velocity for sometime. A car moves in a straight line the car accelerates from rest with a constant acceleration alpha on a straight road. [...]
Assertion : If gravitational potential at some point is zero, then gravitational field strength at that point will also be zero. Reason : Except at infinity gravitational potential due to a system of point masses at some finite distance can’t be zero.
18
Sep
Assertion : If gravitational potential at some point is zero, then gravitational field strength at that point will also be zero. Reason : Except at infinity gravitational potential due to a system of point masses at some finite distance can’t be zero. Assertion : If gravitational potential at some point is zero then gravitational field [...]
An air bubble of radius 1mm is formed inside water at a depth 10m below free surface (where air pressure is 10^5Nm^2). The pressure inside the bubble is – (Surface tension of water = 2×10^–7N/m)
18
Sep
An air bubble of radius 1mm is formed inside water at a depth 10m below free surface (where air pressure is 10^5Nm^2). The pressure inside the bubble is – (Surface tension of water = 2×10^–7N/m) An air bubble of radius 1mm is formed inside water at a depth 10m below free surface (where air pressure [...]
The balls are released from the top of a tower of height H at regular interval of time. When first ball reaches at the ground, the nth ball is to be just released and (n + 1 ) /2 th ball is at
18
Sep
The balls are released from the top of a tower of height H at regular interval of time. When first ball reaches at the ground, the nth ball is to be just released and (n + 1 ) /2 th ball is at The balls are released from the top of a tower of height [...]