Neco Model Questions Vol1 2018 Physics Question 34
Practice objective / multiple choice question 34 from the 2018 Neco Model Questions Vol1 Physics examination.
A hydrogen‑like ion emits a photon of wavelength \(73.0\) nm when an electron drops from the \(n = 3\) to the \(n = 2\) level. (i) Determine the atomic number \(Z\) of the ion. (ii) Calculate the energy of the photon in electron‑volts. (iii) Find the radius of the electron in the \(n = 3\) orbit for this ion. (Take \(R = 1.097 \times 10^{7}\ \text{m}^{-1}\), \(h = 6.626 \times 10^{-34}\ \text{J·s}\), \(c = 3.00 \times 10^{8}\ \text{m·s}^{-1}\), and the Bohr radius \(a_{0}=0.529\ \text{Å}\).)
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This is Neco Model Questions Vol1 2018 Physics Question 34. It is one of the objective questions from the 2018 Neco Model Questions Vol1 Physics examination.
Difficulty level: Hard .
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