Mathematical and Physical Journal
for High Schools
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Problem P. 3848. (December 2005)

P. 3848. A point-like light-source is placed to the symmetry axis of a hemisphere shaped piece of glass of radius 20 cm 10 cm away from the plane surface. The refractive index of glass is 1.5. How long does it take for the light ray whose angle of incidence is 60o to travel through the glass, and what is its direction after emerging from the glass.

(5 pont)

Deadline expired on January 11, 2006.


Statistics:

101 students sent a solution.
5 points:Antal 888 Zoltán, Árvay Anna, Balogh 116 Péter, Blastik Zsófia, Blázsik Zoltán, Bogár 560 Péter, Bognár 137 Gergő, Dudás János, Enczel Dávid, Engedy Balázs, Farkas 512 Patrik, Farkas Ádám László, Filep Tamás, Fodor Tibor, Gombos Gergely, Gresits Iván, Hasznos László, Hevesi Péter, Horváth 795 Andrea, Hülber Tímea, Iván Dávid, Konczer József, Kónya 495 Gábor, Legoza József, Lovas Lia Izabella, Mándi Gábor, Matulik Gábor, Nagy 224 Csaba, Nagy 317 Péter, Nyíri Dávid Ákos, Pálovics Róbert, Pásztor Attila, Pósa László, Sebők Tamás, Szabó 001 Áron, Szabó András László, Szaller Dávid, Széchenyi Gábor, Szécsényi Ágnes, Szijártó 710 Rita, Szilágyi Zsombor, Szirmai Péter, Szolnoki Lénárd, Takátsy Balázs, Tűri Balázs, Váraljai Petra, Werner Miklós.
4 points:15 students.
3 points:7 students.
2 points:18 students.
1 point:7 students.
0 point:1 student.
Unfair, not evaluated:6 solutions.

Problems in Physics of KöMaL, December 2005