Question
50. A glass tube containing some excited H atom was allowed to relax to grind state and the emitted light was thrown on another glass tube containing some excited He+ ion where the electron in He+ ion was excited further higher level. At the end all the excited He+ ion was allowed to relaxed to ground state and the most energetic photon was found to have energy = 52.88 eV . Determine the orbit no. in which electron was present initially in H atom and He+ ion .