AP Physics 2hardmcq1 pt
In the Bohr model of the atom, when an electron transitions from n=3 to n=1, the emitted photon has an energy equal to:
A.E₁
B.E₃ - E₁
C.E₁ - E₃
D.E₃
Explanation
Core Concept
The energy of the emitted photon equals the difference in energy levels: E_photon = E₃ - E₁ (since E₃ > E₁, the photon carries away the excess energy).
Correct Answer
BE₃ - E₁
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