Problem P. 3851. (December 2005)
P. 3851. A diffraction grating is illuminated by light of wavelength 598 nm. The distance between the lines in the diffraction pattern formed on a screen 5 m away from the grating is 2 cm. Find the distance between two rulings. How would the diffraction pattern change if half of the grating parallel to the rulings, or perpendicular to the rulings was covered?
(5 pont)
Deadline expired on 11 January 2006.
Statistics:
>26 students sent a solution.  
5 points:  Csire Gábor, Farkas Ádám László, Hasznos László, Konczer József, Kónya 495 Gábor, Nagy 317 Péter, Rácz 206 György, Sümegi Károly, Széchenyi Gábor, Székely Gergely, Werner Miklós. 
4 points:  Megyeri Balázs, Molnár 811 Kristóf, Nagy 555 Zoltán, Nimmerfroh Katalin, Pécs 777 László, Steierhoffer Gergő, Tűri Balázs, Tüzes Dániel. 
3 points:  7 students. 
