Chapter 10, Problem 10.68E

Interpretation Introduction

Interpretation:

The value of $\langle p_x^2\rangle$ for a particle-in-a-box having $n=1$ and $n=2$ is to be evaluated.

Concept introduction:

In quantum mechanics, the wavefunction is given by $\Psi$. The wavefunction contains all the information about the state of the system. The wavefunction is the function of the coordinates of particles and time. The square of the probability function, ${\left|\Psi \right|}^2$, relates to the probability density.