JAMB Physics 2013 Objective — Question 46
Question 46 of 50 from the Joint Admissions and Matriculation Board (JAMB) Physics 2013 Objective paper, with the correct answer and a full explanation.
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Calculate the energy of the third level of an atom if the ground state energy is -24.8eV.
- A. -9.20eV
- B. -8.20eV
- C. -2.75eVCorrect
- D. -1.75eV
Explanation
For level n: E = E1/n². With n=3: E = -24.8eV/9 = -2.756eV ≈ -2.75eV.
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