(a) Given a wave function, if the quanton's energy is less than
its potential at a location, how can you tell where V is large and
where V is small (with V > E)?
(b) Describe key components of Stern-Gerlach apparatus, one
result of the Stern-Gerlach experiment, and what this result says
about the nature of particles.
(c) Describe the photoelectric effect, one result of the
photoelectric effect, and what this result says about the nature of
photons.