Решение задачи по физике раздел 34 пункт 77 оптика

77. A point E on the screen spaced from the source S of monochromatic light (λ = 0,5 mm) at a distance of l = 1 m, are distributed two beams: SA (perpendicular to the screen), and SBA (reflected at point B from the mirror parallel ray SA). Determine what will occur at point A - strengthening or weakening the intensity if the distance d from the plane mirror to the beam SA is 2.5 mm.

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