Periodic Potential Energy Wells Exercise #1

Please answer the  following 2 questions regarding the Physlet:

Plot: y Plot: y*y

Description

Shown is the time-independent wave function for a particle in a periodic potential energy function (a series of finite square potential energy wells).  You may change the state by click-dragging on the energy-level diagram on the left.  You may view the wave function or the probability density. 

Questions

  1. How many finite potential energy wells are there?
  2. Why?

Credits

Script by Mario Belloni and Wolfgang Christian.
Questions by Mario Belloni.
Java applets by Wolfgang Christian.