Problem P. 4842. (April 2016)

P. 4842. There are small holes on an opaque sheet, the holes positioned in a regular hexagonal grid as shown in the figure. The sheet is illuminated by monochromatic laser light of wavelength \(\displaystyle \lambda\) perpendicularly to the sheet.

What kind of diffraction pattern can be observed on the screen which is placed at a distance of \(\displaystyle L\) from the sheet, if the distance between the holes is \(\displaystyle d\)? What can be stated about the brightness of the peak intensities with respect to each other? (It can be assumed that \(\displaystyle L\ll d \ll \lambda\).)

(6 pont)

Deadline expired on May 10, 2016.

Statistics:

6 students sent a solution.
6 points:	Ghada Alshalan, Kovács Péter Tamás.
5 points:	Büki Máté.
4 points:	1 student.
3 points:	1 student.
0 point:	1 student.

Problems in Physics of KöMaL, April 2016