An electron in an hydrogen atom has total energy of `-3.4eV`. Choose the correct statement (s):

An electron in Bohr's hydrogen atom has an energy of -3.4 eV. The angular momentum of the electron is

An electron in Bohr's hydrogen atom has an energy of -3.4 eV. The angular momentum of the electron is

An electron is in excited state in a hydrogen-like atom. It has a total energy of -3.4eV .The kinetic energy of the electron is E and its de Broglie wavelength is lambda

An electron , in a hydrogen-like atom, is in excited state. It has a total energy of -3.4 eV. Calculate (a) the kinetic energy and (b) the de Broglie wavelength of the electron.

An electron in a hydrogen -like atom is in an excited state. It has a total energy of -3.4 eV. Calculate the kinetic energy of the electron.

If the total energy of an electron in a hydrogen atom in an exicted state is -3.4 eV , then the de- broglie wavelegth of the electron is :-