# Particle in a Box

1. Sep 23, 2008

### Ming0407

What are the probabilities of finding the electron anywhere between x=0 and x=L/4? (n=1 and n=2)

Can you give example to me?

2. Sep 23, 2008

### yaychemistry

Do you know the wave function for a particle in a box, or can you try to derive them?

3. Sep 23, 2008

### Ming0407

http://user.mc.net/~buckeroo/PODB9.gif [Broken] true??? n=1 or n=2 L=L/4? this is answer?

Last edited by a moderator: May 3, 2017
4. Sep 23, 2008

### yaychemistry

That is the correct wave function. Can you use that to predict the probability in being in one section of the box? Remember that $$\left|\psi\left(x\right)\right|^2$$ is a probability density, so you have to integrate over some interval in x (The right interval is specified in your problem, can you spot it?).