Optics > reflection

Comparing the paths of a reflected ray of light and a rubber ball.

Shows rays forming an image in the smoke with a lens and a mirror, as well as the effects of chromatic and spherical aberration.

Investigating the formation of real images. 

Identifying that the image in a plane mirror is virtual.

Shows that image and object positions are symmetrical in a plane mirror.

Showing angle of incidence equal to angle of reflection.

The caustic curve and how the aberration can be reduced by reducing the aperture.

This experiment is well worth the effort of setting it up.