Решение задачи по физике раздел 42 пункт 14 оптика

14. The plano-convex lens with a refractive index n = 1,6 convex side lies on a glass plate. The radius of the third ring light in the reflected light (λ = 0,6 m) is equal to 0.9 mm. Determine the focal length of the lens.

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