The Photon Radiated From Hydrogen Corresponding To Nd Line Of Lyman Series Is Absorbed By A Hydrogen Like Atom X In 4th Excited State As A Result The Hydrogen Like Atom X Makes A Transition To N Th Orbit Then A X He N 4 Read More On Sarthakscom Httpswwwsarthakscom435148the Photon Radiated From Hydrogen Corresponding Line Lyman Series Absorbed Hydrogen Like