- #1

Mrbilly

- 5

- 0

## Homework Statement

An electron is trapped in an infinite square-well potential of width 0.5 nm. If the electron is initially in the n=4 state, what are the various photon energies that can be emitted as the electron jumps to the ground state?

## Homework Equations

ΔE=13.6(1/n

_{f}

^{2}-1/n

_{i}

^{2})

E

_{n}=hbar

^{2}n

^{2}∏

^{2}/(2mL

^{2})

## The Attempt at a Solution

Im not quite sure if this is a trick or not, but I thought that I did not need the energy equation for the 1-D infinite well, E

_{n}, but just needed to use the ΔE equation and do n=4->n=1. Or do I also need to find the energy at n=4 and n=1 and show those as well?