Hollow Glass Prism & Stopper, 1.5x1.5" - Great for Studying Snells Law of Refraction - Eisco Labs

Hollow glass prism, made from glass plates properly cemented. Size 38 x 38 prism. Stopper included. Excellent tool for optical experimentation, as well as for studying Snells Law of Refraction. Change the liquids or gases in the cube to change the refraction properties.