48.What is the energy of an incident photon that is just enough to excite a hydrogen ground state to
問題詳情
48.What is the energy of an incident photon that is just enough to excite a hydrogen ground state to its n = 4 state? (A) 0.85 eV (B) 2.40 ev (C) 3.40 ev (D)10.20 eV (E) 12.75 eV