Nature of Physical World and Measurement — Physics STD 11 — Question

A mass is whirled in a circular path with constant angular velocity and its angular momentum is L. If the string is now halved keeping the angular velocity the same, the angular momentum is –

A satellite revolves around the Earth in an elliptical orbit. Its speed.

Three massses is in contact as shown. If force F is applied to mass m1, the acceleration of three masses is –

Energy required to move a body of mass ‘M’ from an orbit of radius 2R to 3R is …….

If net force acting on a body is zero, then the body is in –

In an isochoric process

For a particle revolving in a circular path, the acceleration of the particle is –

The magnitude of angular momentum is given by –

The distance between the center of carbon and oxygen atoms in the gas molecule is 1.13 A. The center of mass of the molecule relative to oxygen atom is –