American Association of Physics Teachers, Winter Meeting 2012
In optics class we often derive refraction at spherical surfaces (which is
ultimately the same as for cylindrical surfaces). We then move on to apply
the thin lens approximation and come up with the thin lens equation.
However, students generally are unwilling to apply the expressions we have
derived in general situations, preferring to misapply the convenient thin
lens equation and lens makers equation. For this reason we provided the
students with an investigation in which the students were required to use
the more general expressions for curved refracting surfaces. The investigation
and results will be presented.
Mark Masters and Jacob Millspaw (2012).
An Optics Investigation Using a Beaker. Presented at American Association of Physics Teachers, Winter Meeting 2012, Ontario CA.