COMEDK · Physics · 28. Atomic Physics
The minimum energy required by a hydrogen atom in ground state to emit radiation in Paschen series is nearly:
- A 12.75 eV
- B 13.6 eV
- C 10.75 eV
- D 1.5 eV
Answer & Solution
Correct Answer
(A) 12.75 eV
Step-by-step Solution
Detailed explanation
The energy levels of a hydrogen atom are given by \(E_n = -\dfrac{13.6}{n^2} \text{ eV}\). The Paschen series corresponds to transitions where the electron falls to the energy level \(n_f = 3\). To emit radiation in the Paschen series, the electron must first be excited from the…
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