Решение задачи по физике раздел 42 пункт 23 оптика

23. Determine the radius of the first Fresnel zone, if the distance from a point source of light (λ = 0,5 mm) to the zone plate and from the plate to the point of observation a = b = 1 m.

Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)