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.

(6 pont)

Deadline expired on December 11, 2006.

Statistics:

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 solutions.

Problems in Physics of KöMaL, November 2006