Решение задачи по физике раздел 65 пункт 45 оптика

45. The plane monochromatic light wave (λ = 628 nm) is normally incident on a narrow slit. What is the slit width, if the second peak observed at a diffraction angle equal to 1°30´?

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