Exam-style question
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What is the relationship between photon energy and the energy difference between two energy levels?.
- A.Photon energy is equal to the energy difference
- B.Photon energy is half the energy difference
- C.Photon energy is double the energy difference
- D.Photon energy is unrelated to energy levels
Model answer
What a good answer should say
- Photon energy is equal to the energy difference
Explanation
Why this works
The energy of a photon emitted during an electron transition is directly proportional to the difference in energy levels, following the equation E = hf.
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