?

AP® Physics 1 & 2

Free Version

Upgrade subject to access all content

Moderate

Which Energies Are Emitted?

APPH12-CC8EEN

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

If a large number of these atoms have electrons all initially at the $n=3$ state, which of the following energies of photons are emitted as the atoms fall back to the ground state? Select TWO answers.

A

$6.8 \text{ eV}$

B

$6.5 \text{ eV}$

C

$4.3 \text{ eV}$

D

$10.8 \text{ eV}$