KöMaL - Mathematical and Physical Journal for Secondary Schools
Hungarian version Information Contest Journal Articles News
Entry form to the contest
Problems and solutions
Results of the competition
Problems of the previous years



Order KöMaL!

Competitions Portal

P. 4021. The sharp image of the vertical filament of a bulb is projected to a white wall. How does the image change if a diffraction grating which consists of vertical slits is placed in the way of the light, right in front of the lens, or right behind the lens? Where can the wall be seen pure blue?

(5 points)

Deadline expired on 11 December 2007.

Statistics on problem P. 4021.
7 students sent a solution.
4 points:Guszejnov Dávid, Tolner Ferenc.
3 points:1 student.
2 points:1 student.
Unfair, not evaluated:3 solutions.

  • Problems in Physics of KöMaL, November 2007

  • Our web pages are supported by:   Ericsson   Google   Cognex   Emberi ErĹ‘forrás TámogatáskezelĹ‘   Emberi ErĹ‘források MinisztĂ©riuma  
    OktatáskutatĂł Ă©s FejlesztĹ‘ IntĂ©zet   Nemzeti TehetsĂ©g Program     Nemzeti
Kulturális Alap   ELTE   Morgan Stanley