- Question - The energy of an electron in the first Bohr orbit of H atom is -13.6 eV. The possible energy value(s) of the excited state(s) for electrons in Bohr orbits of hydrogen is (are) : (IIT JEE 1998) a) -3.4 eV . b) -4.2 eV . c) -6.8 eV . d) +6.8 eV . Answer: a. Logic: The energy of an electron in Bohr’s orbit of hydrogen atom is given by ...