A thin film of polystyrene is used as an antireflective coating for fabulite (known as the substrate). The index of refraction of the polystyrene is 1. 49, and the index of refraction of the fabulite is 2. 409.

Ben’s job responsibilities include ordering in supplies, tracking inventory, managing waitstaff, and greeting guests. what does ben do? a) warehouse manager b)restaurant manager c)hotel manager d)shipping company manager