A-Level
EDEXCEL
Physics
October 2025
1 Marks
QP-202510-Physics-U2 · Question 9
Question (excerpt):
9 The diagram shows the energy levels in an atom. electron Energy in eV –1 –2 –4 –5 n = 4 n = 3 n = 2 n = 1 ground state When the electron moves from n = 4 to the ground state, a photon of frequency f…
9 The diagram shows the energy levels in an atom. electron Energy in eV –1 –2 –4 –5 n = 4 n = 3 n = 2 n = 1 ground state When the electron moves from n = 4 to the ground state, a photon of frequency f…
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