## 1A.15

$c=\lambda v$

LReedy_3I
Posts: 51
Joined: Fri Aug 30, 2019 12:17 am

### 1A.15

Is question 1A.15 referring to an emission or absorption spectrum, and would it affect the final answer? I got n(final) to be 3, but if it is an emission spectrum would this be n(initial) = 3 and n(final) = 1?

Abby Soriano 1J
Posts: 103
Joined: Sat Aug 24, 2019 12:16 am

### Re: 1A.15

The question asks for the final and initial energy levels of the electron during the /emission/ of energy, so they're referring to the emission spectrum. As a result, n=3 would be the initial energy level while n=1 would be the final energy level since electrons only emit energy when falling from a higher energy level back to a lower one.

haileyramsey-1c
Posts: 105
Joined: Thu Jul 25, 2019 12:18 am

### Re: 1A.15

The emission and absorption spectra are the same. They must line up and match because the energy emitted or absorbed would be the same. Since the question asks for the initial and final energy levels of the electron so the transition would be from n=1 to n=3