# Homework Help: Wave function,probability,normalization,etc.

1. Feb 12, 2014

### prehisto

1. The problem statement, all variables and given/known data
-∞<pi<∞
N-normalization multiple

f(px)=N*exp(-$\alpha$px)
1)normalize wave function to 1
2) find probability distrubution px
2) find avarage value and dispersion for px

2. Relevant equations

So for normalization i have to find N value when $\int$ (from -∞ to ∞)[N*exp(-$\alpha$px)]^2=1
Am I right ?
either way when Im tried to solve this integral, i obtained -> -N^2=1
Could it be right ?

3. The attempt at a solution
1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

2. Feb 12, 2014

### Goddar

Your integral diverges, are you sure there's no square or absolute value involved?

3. Feb 12, 2014

### prehisto

Right now i have only this example ,checked - there is nothing more to it.
I will check the source and let you know.

4. Feb 12, 2014

### vela

Staff Emeritus
Yes, that would be the normalization condition.

No. First, as Goddar noted, the integral you wrote down diverges. Second, even if it didn't, your N would cause the integral to be negative, not +1.