These Glass Slab’s are having parallel polished Surfaces from all sides. These are used to measurement for angle of refraction, when light pass through two different environment’s, and manufactured from bubble less sheet glass....
Made from moulded glass, all faces highly polished. Suitable for beginner’s study of basic laws of refraction by the pin-sighting method. Length Breadth Thickness 75 mm 50 mm 18 mm 100 mm ...
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