Neco 2025 Physics Question 41
Practice objective / multiple choice question 41 from the 2025 Neco Physics examination.
An hydrogen atom is excited from the ground state to the \(n=5\) level. It can return to the ground state either by a direct transition \(5\rightarrow1\) (probability 0.3) or by a two‑step transition \(5\rightarrow3\rightarrow1\) (probability 0.7). Using the Rydberg constant \(R_{H}=1.097\times10^{7}\,\text{m}^{-1}\), determine the average wavelength (in metres, to three significant figures) of the photons emitted per atom.
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About This Question
This is Neco 2025 Physics Question 41. It is one of the objective questions from the 2025 Neco Physics examination.
Difficulty level: Hard .
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