Card 1 of 26
When a particle drops from a higher to a lower energy level, what determines the emitted photon energy?
A
It equals the energy-level gap: ΔE=Eupper−Elower\Delta E=E_{\text{upper}}-E_{\text{lower}}ΔE=Eupper−Elower.
B
It equals the sum of the energy levels: ΔE=Eupper+Elower\Delta E=E_{\text{upper}}+E_{\text{lower}}ΔE=Eupper+Elower.
C
It equals the upper-level energy: ΔE=Eupper\Delta E=E_{\text{upper}}ΔE=Eupper.
D
It equals the lower-level energy: ΔE=Elower\Delta E=E_{\text{lower}}ΔE=Elower.
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Lasers Flashcards
26 flashcards on Eduqas A Level Physics Lasers: the key terms, definitions and equations you need to recall for Component 1, Component 2 and Component 3.