Решение задачи по физике раздел 2 пункт 5 оптика

5. On the way of the light wave propagating in the air, put a glass plate having a thickness h = 1 mm. How much change the optical path length ?L, if the wave incident on the record: 1) normal; 2) at an angle ? = 30°?

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