Mathematical and Physical Journal
for High Schools
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Problem P. 4766. (October 2015)

P. 4766. An aluminium sheet is illuminated by ultraviolet light of wavelength 200 nm.

\(\displaystyle a)\) what will the kinetic energy of the fastest and the slowest emitted electrons?

\(\displaystyle b)\) What is the stopping voltage?

(4 pont)

Deadline expired on November 10, 2015.


Statistics:

41 students sent a solution.
4 points:Baglyas Márton, Bartók Imre, Berke Martin, Boldizsár Bálint, Budai Koppány, Csenger Géza, Csuha Boglárka, Elek Péter, Fehér 169 Szilveszter, Fekete Balázs Attila, Ghada Alshalan, Iglódi Ferenc, Iván Balázs, Keresztes Barbara, Klász Viktória, Kolontári Péter, Krasznai Anna, Matusek Márton, Németh Flóra Boróka, Olosz Adél, Osváth Barnabás, Páhoki Tamás, Pázmán Előd, Pintér 345 Balázs, Szépfalvi Bálint, Tanner Martin, Tófalusi Ádám, Topa Lukács, Tóth Adrián, Virág Barnabás.
3 points:Csire Roland, Gémes Antal, Gergely 444 Kornél, Nagy 555 Botond, Sallai Krisztina, Szentivánszki Soma .
2 points:3 students.
1 point:1 student.
Unfair, not evaluated:1 solution.

Problems in Physics of KöMaL, October 2015