Statement
12.2.7. [Insert the problem statement]
Solution
12.2.7 A plane sinusoidal wave falls on a hole of radius r perpendicular to its plane.
The wavelength is λ ≪ r. The wave intensity along the hole axis changes pe-
riodically. At what distance from its center is the last maximum? Determine
the distance between the intensity maxima at a distance z0 from the center of
2
the hole, if rλ ≫ z0 ≫ r.
Answer
[Insert a concise answer or boxed result]