Name the particle that is massless, chargeless but possess angular momentum.

Write the unit of angular momentum.

What are dimensions of Angular momentum?

How torque is related to angular momentum?

Name a physical constant whose dimensins are the same as that of angular momentum.

Find the components along the x, y, z axes of the angular momentum 1 of a particle, whose position vector is r with components x, y, z and momentum is p with components p_x,p_yand p_z . Show that if the particle moves only in the x-y plane the angular momentum has only a z-component.

For a hypothetical hydrogen like atom, the potential energy of the system is given by U(r)=(-Ke^(2))/(r^(3)) , where r is the distance between the two particles. If Bohr's model of quantization of angular momentum is applicable then velocity of particle is given by:

What is physical meaning of angular momentum?

Name the ribonucleoprotein particles of cell.