The ratio of energy of the electron in ground state of hydrogen to the electron in first excited state of `Be^(3+)` is

The ratio of the energy of the electron in ground state of H to the electron in first excited state of Be^(+3) is

The ratio of energy of the electron in group state of the hydrogen to electron in first excited state of He^+ is.

The ratio of the energy of the electron in the ground state of H to the electron in the first excited state of Be^(3+) is ,

What is the ratio of energy of the ground state of hydrogen atom and energy of the first excited state of He^+ ion (Z=2) ?

The energy required to excite the electron from ground state of hydrogen atom to first excited state is

In a hydrogen atom, if energy of an electron in ground state is 13.6eV, then the energy in the nearest excited state is