an electron in a hydrogen LIKE species is associated with a wave length of 6.67 A⁰. wave no. of lyman's series of that specie is 438708 cm^-1. the species is excited electrically to some higher quantum state which has 3.808 eV more than the 2nd excited state. R = 109677 cm^-1

 

1 what is Kinetic energy of electron? 3.38 eV
2 what is PE of e- ? -6.78 eV
3 what will b wavelength of photon emitted during the shortest wavelength of transition from the mentioned excited state? 237.4 A⁰