1. Each team will observe a series of "black boxes" in
which light is seen to enter and seen to exit altered in some clearly
2. A set of optical elements will be provided from which the effects
can be created. The set includes: thin convex and concave lenses;
plane, convex and concave mirrors; 45° prisms; isosceles prisms;
diffraction gratings; parallel-sided and semicircular transparent
solids. (No single black box will contain all these elements.)
3. The team must decide which elements were used and diagram their
placement in each box.
4. The team submits one set of solutions. The time from entry to
submission of solutions will be measured.