Expressions for the linear speed of the electron, the radius of the orbit, the angular speed of the electron and the frequency of revolution and the period of revolution of the electron in an atom :

Expressions for the linear speed of the electron, the radius of the orbit, the angular speed of the electron and the frequency of revolution and the period of revolution of the electron in an atom :

Consider an electron revolving in the nth Bohr orbit around the nucleus of an atom with the atomic number Z. Let m and -e be the mass and charge of

the electron, r the radius of the orbit and the linear speed of the electron.

(i) According to Bohr's first postulate, centripetal force on the electron = electrostatic force of attraction exerted on the electron by the nucleus.