A circular disc rotates at n rpm. The angular velocity of a circular ring of same mass and radius as the disc and to have the same angular momentum is___________________?

Related Mcqs:

One end of an elastic string of natural length / and modulus X is kept fixed while to the other end is attached a particle of mass m which is hanging freely under gravity. The particle is pulled down vertically through a distance x, held at rest and then released. The motion is___________________?

A. a simple harmonic motion B. a rectilinear motion with constant speed C. a damped oscillatory motion D. none of the above...

A body is dropped from a height of 100 m and at the same time another body is projected vertically upward with a velocity of 10 m/sec. The two particles will____________________?

A. never meet B. meet after 1 sec C. meet after 5 sec D. meet after 10 sec...

A ball moving on a smooth horizontal table hits a rough vertical wall, the coefficient of restitution between ball and wall being 1/3. The ball rebounds at the same angle. The fraction of its kinetic energy lost is___________________?

A. 1/3 B. 2/3 C. 1/9 D. 8/9...

The ratio of kinetic energy and potential energy of a simple harmonic oscillator, at a displacement equal to half its amplitude is given by__________________?

A. 1:2 B. 1:1 C. 2:1 D. 3:1...

The angles between two forces to make their resultant a minimum and a maximum respectively are__________________?

A. 0° and 90° B. 180° and 90° C. 90° and 180° D. 180° and 0°...