What is Bohr's quantization condition for angular momentum of electron in an atom?

Angular momentum is

What is Bohr's radius?

Linear momentum of electron in nth orbit is

What is angular momentum ?

Dimensions of angular momentum is

The ratio of magnetic dipole moment to angular momentum of electron is

The angular momentum of a particle is

Find the linear momentum of the electron in the 2nd Bohr orbit. And hence find the angular momentum of the electron in hydrogen atom.

State the law of conservation of angular momentum .

What is meant by 'shielding of electrons’ in an atom?