beginning of content:
SAT Subject Test
The three lowest energy levels of an atom are shown above. An atom in the state can, in a single transition, spontaneously emit a photon having an energy of
Select an Answer
only
Correct Answer:
No
only
Correct Answer:
No
only
Correct Answer:
No
or
only
Correct Answer:
Yes
or
only
Correct Answer:
No
View Correct Answer
The correct answer is or
only. When the atom in the
state makes just a single transition, it can end up in either the
state or the
state. The energy of the photon released is just the difference in the energy of the initial and final atomic states. In this case the photon energy is either
or
.
Question Difficulty:
hard