Physics questions
20027 published questions with worked solutions.
- If angular velocity of a body is doubled then ratio of its angular momentum is
- A thin uniform ring of mass 10 kg and radius 0.5 m is rotating about an axis through its centre and perpendicular to plane with...
- A mass attached to massless spring is whirled in a circular path with constant angular velocity and its angular momentum is L. If...
- The moment of inertia of a body about given axis is 1.2 kg ,m^2 and it is at rest. An angular acceleration of 25 rad/s^2 is...
- A body is acted by a constant torque. In 4 second its angular momentum change from L to 4 L . What is the magnitude of the torque?
- The shaft of motor rotates at a constant angular velocity of 3000 rpm . The radian it has turned through in one second is:
- A fan of moment of inertia 0.6 kg ,m^2 is rotated up to the speed of 0.5 revolutions per second. The angular momentum of the fan...
- Two spheres have identical masses and M.I One of them is solid and the other is hollow. The ratio of the radius of solid sphere...
- The M.I. of circular ring about an axis passing through its centre and normal to its plane is 200 gm- cm^2 . then its MI about a...
- A ring of mass 10 kg and diameter 0.4 m is rotated about its axis. It makes 2100 revolutions per minute; Its angular momentum...
- A wheel of mass 10 kg has a moment of inertia 160 kgm^2 about its own axis. Then radius of gyration is
- Angular acceleration of a body of mass 50 kg under the action of torque of magnitude 500 Nm is 25 rad/s^2 . Then radius of...
- If a mass shifts towards the axis of rotation, its M.I. will
- The M.I. of a cube will be minimum about an axis which
- The physical quantity in translatory motion corresponding to torque in ratatory motion is
- Select the WRONG statement The location of centre of mass of a system of particles
- On account of melting of ice at the north pole, the moment of inertia of spinning earth
- The physical significance of mass in translational motion is same as which of the following in rotational motion?
- If the position of axis of rotation of a body is changed, then which of the following quantities will change?
- Which of the following quantities is/are directionless?