The distance between centre of nucleus to the outer most electron is "2.116A^(0)" in H -atom, then its kinetic energy of electron is

The angular momentum of an electron in hydrogen atom is h/pi The kinetic energy of the electron is

The total energy of an electron is 3.555 MeV, then its Kinetic energy is

The energy of electron in first excited state of H -atom is -3.4 eV its kinetic energy is

In H-atom energy of electron is datermined by :

The angular momentum of an electron in hydrogen atom is 4 h// 2 pi . Kinetic energy this electron is

Kinetic energy of electron in n^("th") orbit in H-atom

" Kinetic energy of electron in "n''" orbit in H-atom "

A photon of energy 15 eV collision , H-atom gets ionised. The maximum kinetic energy of emitted electron is

A 5 xx 10^(-4) Å photon produces an electron-positron pair in the vincinity of a heavy nucleus. Rest energy of electron is 0.511 MeV . sIf they have the same kinetic energies, the energy of each paricles is nearly