Neco Model Questions Vol1 2025 Physics Question 9
Practice objective / multiple choice question 9 from the 2025 Neco Model Questions Vol1 Physics examination.
An electron in a hydrogen atom drops from the \(n=5\) level to the \(n=2\) level, emitting a photon. (a) Calculate the wavelength of the emitted photon using the Rydberg constant \(R_{H}=1.097\times10^{7}\ \text{m}^{-1}\). (b) Determine the energy of the photon in electron‑volts and state whether this photon has enough energy to ionise a hydrogen atom (ionisation energy \=13.6\ \text{eV}).
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This is Neco Model Questions Vol1 2025 Physics Question 9. It is one of the objective questions from the 2025 Neco Model Questions Vol1 Physics examination.
Difficulty level: Hard .
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