Conservation Of Angular Momentum

A when a diver dives, the rotational kinetic energy of diver increases, during several somersaults. When diver pulls his limbs, the moment of inertia decreases and on account of conservation of angular momentum his angular speed increases.

The electrons in a H - atom kept at rest , jumps from the mth shell to the nth shell (m gt n) . Suppose instead of emitting electromagnetic wave, the energy released is converted into kinetic energy of the atom. Assuming Bohr's model and conservation of angular momentum are valid. Now , answer the following questions: What principal is violated of inertia

The electrons in a H - atom kept at rest , jumps from the mth shell to the nth shell (m gt n) . Suppose instead of emitting electromagnetic wave, the energy released is converted into kinetic energy of the atom. Assuming Bohr's model and conservation of angular momentum are valid. Now , answer the following questions: Calculate the angular velocity of the atom about the nucleus if l is the momentum of inertia

Two discs of moments of inertia I_(1) and I_(2) about their respective axes (normal to the disc and passing through the centre) and rotating with angular speeds omega_(1) and omega_(2) are brought into contact face to face with their axes of rotation coincident. (a) Does the law of conservation of angular momentum apply to the situation ? Why ? (b) Find the angular speed of the two-disc system. (c ) Calculate the loss in kinetic energy of the system in the process. (d) Account for this loss.

Momentum || Conservation OF Momentum

Momentum || Conservation OF momentum

Assertion : There are two propellers in a helicopter. Reason : Angular momentum is conserved.

Law of Conservation of Momentum | Conservation of momentum and conservation of energy Questions