# Calculating an Infinite Box Extending Without Schrodinger

Consider an infinte box extending from x=-a/2 to x=a/2. Can you, without actually solving the Schrodinger equation but by looking at the shape of the wave function, immediately give a general formula for the energy eigenvalues for an infinite box that extends for x=-a/2 to x=0? (Hint: Where do the eigenfunctions have nodes?)

© BrainMass Inc. brainmass.com April 1, 2020, 3:37 pm ad1c9bdddfhttps://brainmass.com/physics/wavefunction/calculating-infinite-box-extending-schrodinger-205019

#### Solution Preview

The wave function must have nodes at the boundary of the box; and this implies that

only a half-integer number of ...

#### Solution Summary

The solution calculates an infinite box extending without Schrodinger.

$2.19