Решение задачи по физике раздел 42 пункт 28 оптика

28. Diffraction occurs at a distance l from a point source of monochromatic light (λ = 0,5 mm). In the middle between the light source and the screen is opaque circular disc with a diameter of 5 mm. Determine the distance l, if the drive closes only the central Fresnel zone.

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