Potential energy is `-27.2eV` in second orbit of He; then calculate double of total energy in first excited state of hydrogen atom :-

Calculate the orbital period of the electron in the first excited state of hydrogen atom.

Find the kinetic energy, potential energy and total energy in first and second orbit of hydrogen atom if potential energy in first orbit is taken to be zero.

Calculate the first excitation energy of electron in the hydrogen atom.

The ratio of radii of orbits correponding to first and second excited states of hydrogen atom is

Assume that the charge of an electron is 1.6times10^(-19) coulomb and the energy of the first orbit of hydrogen atom is -13.6 eV. If the energy required to excite the ground state electron of hydrogen atom to the first excited state, is expressed as y times10^(-19)J per atom, what is the value of y ?

the energy required to excite an electron in hydrogen atom to its first excited state is