To demonstrate refraction and provides a better understanding of Snell’s Law. Comprises of acrylic cube and a glass mug. Includes instructions.
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Fitted in plastic frame Single, x4 Double, x7 Triple, x10 Single, x4, with leather pouch
Brass dial head 40 mm diameter, divided and marked in 100 divisions, vertical scale 10-0-10 mm, fitted on tripod stand, distance between legs 40 mm.
Sizrs are mentioned below:- Screw pitch 1 mm Screw pitch 0.5 mm
Wooden, with V shaped slot to take spherical lens or mirror up to 75 mm diameter, with index mark. Lense holder, Wooden, 'V' Shaped.
Free from air bubbles, all sides polished
Rectangular, glass, back silvered, with protective coating
90 mm diameter,16 mm thickness
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