Physics questions
20027 published questions with worked solutions.
- A particle performs rotational motion with an angular momentum 'L'. If frequency of rotation is doubled and its kinetic energy...
- Two rotating bodies P and Q of masses 'm' and '2m' with moment of inertia I_P and I_Q (I_Q>I_P) have equal kinetic energy of...
- A solid sphere of mass 'M' and radius 'R' is rotating about its diameter. A solid cylinder of same mass and same radius is also...
- A bob of a simple pendulum of mass 'm' is displaced through 90° from mean position and released. When the bob is at lowest point,...
- A particle with position vector r has a linear momentum P. Which one of the following statements is true in respect of its...
- Two rings of radius 'R' and 'nR' made of same material have the ratio of moment of inertia about an axis passing through its...
- A molecule consists of two atoms each of mass 'm' and separately by a distance 'd'. At room temperature, if the average...
- The moment of inertia of a body about the given axis, rotating with angular velocity 1 rad/s is numerically equal to 'P' times...
- Two circular loops P and Q are made from a uniform wire. The radii of P and Q are R_1 and R_2 respectively. The moments of...
- A metre scale is supported on a wedge at its centre of gravity. A body of weight 'w' is suspended from the 20 cm mark and another...
- A body of mass 'm' and radius of gyration 'K' has an angular momentum 'L'. Then its angular velocity is [MHT-CET 2019, MHT-CET...
- The moment of inertia of a thin uniform rod of mass 'M' and length 'L' about an axis passing through a point at a distance L4...
- Two identical particles each of mass 'm' are separated by a distance 'd'. The axis of rotation passes through the midpoint of 'd'...
- A body attached to one end of a string performs motion along a vertical circle. Its centripetal acceleration, when the string is...
- A body of mass 'm' and radius of gyration 'K' has an angular momentum L. Its angular velocity is [MHT-CET 2019, MHT-CET 2019]
- A van is moving with a speed of 108 km/hr on a level road where the coefficient of friction between the tyres and the road is...
- The relative angular speed of hour hand and second hand of a clock is (m rad/s) [MHT-CET 2019, MHT-CET 2019]
- A mass tied to a string is whirled in a horizontal circular path with a constant angular velocity and its angular momentum is L....
- A disc has mass 'm' and radius 'R'. How much tangential force should be applied to the rim of the disc so as to rotate with...
- A body is rotating about its own axis. Its rotational kinetic energy is 'x' and its angular momentum is 'y'. Hence its moment of...