MHT CET questions
29293 published questions with worked solutions.
- Four spheres of diameter 2a and mass M are placed with their centres on the four corners of a square of side b. Then, the moment...
- Three point masses, each of mass m are placed at the corners of an equilateral triangle of side l. Moment of inertia of this...
- The diameter of a flywheel is increased by 1%. Increase in its moment of inertia about the central axis is
- An iron rod of mass M and length L is cut into n equal parts by cutting it perpendicular to its length. If I is the moment of...
- Two discs one of density 7200 kg/m^3 and another of density 9000 kg/m^3 have the same mass and thickness. What is the ratio of...
- A thin rod of length L and mass M is bent at its mid-point into two halves, so that the angle between them is 90^ . What is the...
- Moment of inertia of a thin rod of mass M and length L about an axis passing through its centre is ML^2 12 . Its moment of...
- Two wheels A and B are mounted on the same axle. Moment of inertia of A is 6 kg ,m^2 and it is rotating at 600 rpm when B is at...
- What is the torque of the force F=(2 i-3 j+4 k) N acting at the point r=(3 i+2 j+3 k) m about the origin?
- A thin rod of mass m and length 2l is made to rotate about an axis passing through its centre and perpendicular to it. If its...
- If r denotes the distance between the sun and the earth, then the angular momentum of the earth around the sun is proportional to
- A ballet dancer spins with 2.8 rps with her arms out stretched. When the moment of inertia about the same axis becomes 0.7I, the...
- A particle is projected with a speed v at 45^ with the horizontal. The magnitude of angular momentum of the projectile about the...
- The angular momentum of a rotating body changes from A_0 to 4A_0 in 4 min. The torque acting on the body is
- What torque will increase angular velocity of a solid disc of mass 16 kg and diameter 1 m from zero to 2 rps in 8 s ?
- A particle performs uniform circular motion with an angular momentum L. If the frequency of a particle's motion is doubled and...
- An ice skater spins at 3 rad ,s^ -1 with her arms extended. If her moment of inertia with arms folded is 75% of that with arms...
- A wheel having moment of inertia 2 kg ,m^2 about its vertical axis, rotates at the rate of 60 rpm about this axis. The torque...
- A ring of diameter 0.4 m and of mass 10 kg is rotating about its axis at the rate of 1200 rpm. The angular momentum of the ring is
- A solid sphere is rotating about a diameter at an angular velocity . If it cools, so that its radius reduces to 1/n of its...