Problem M. 273. (November 2006)
M. 273. The display of a solar cell powered calculator turns off if some part of the solar cell is covered. (Use a calculator which does not have a back-up battery.) Find the limit case, and examine the relationship between the area of the uncovered surface and the intensity of light. Shading the uncovered part of the solar cell with semi-permeable foils investigate how the absorption of light depends on the number of layers.
Deadline expired on December 11, 2006.
22 students sent a solution. 6 points: Kőrösi Márton, Meszéna Balázs, Pásztor Árpád, Tüzes Dániel, Vida György. 5 points: Hasznos László, Pósa László, Roósz Gergő, Szél Péter. 4 points: 7 students. 3 points: 1 student. 2 points: 4 students. Unfair, not evaluated: 1 solution.