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AP® Physics 1 & 2

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Moderate

Energy of Absorbed Photon

APPH12-NNVXN1

The energy-level diagram for a theoretical atom is shown below.

One of these atoms initially has an electron in the $n=3$ state, and then absorbs a photon to move the electron to an adjacent energy level.

What is the energy of this absorbed photon?

A

1.8 eV

B

2.2 eV

C

2.5 eV

D

6.5 eV