GATE Physics Exam > GATE Physics Videos > Quantum Mechanics for GATE > Lecture 5: Angular Momentum
Lecture 5: Angular Momentum Video Lecture | Quantum Mechanics for GATE - GATE Physics
FAQs on Lecture 5: Angular Momentum Video Lecture - Quantum Mechanics for GATE - GATE Physics
| 1. What is angular momentum in physics? |  |
Ans. Angular momentum in physics is a measure of the rotation of an object around an axis. It is calculated as the product of the object's moment of inertia and its angular velocity.
| 2. How is angular momentum conserved in a closed system? | |
Ans. Angular momentum is conserved in a closed system when there are no external torques acting on the system. This means that the total angular momentum of the system remains constant over time.
| 3. How does angular momentum relate to torque? | |
Ans. The rate of change of angular momentum of an object is equal to the torque acting on it. This relationship is described by the equation torque = rate of change of angular momentum.
| 4. How can you increase the angular momentum of an object? | |
Ans. The angular momentum of an object can be increased by either increasing its moment of inertia or its angular velocity. This can be achieved by changing the shape of the object or by applying a torque to it.
| 5. What is the difference between linear momentum and angular momentum? | |
Ans. Linear momentum is a measure of an object's motion in a straight line, while angular momentum is a measure of an object's rotation around an axis. Linear momentum is the product of an object's mass and its velocity, while angular momentum is the product of its moment of inertia and angular velocity.
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