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![Magnets, bar, triconal type, 150 mm length, complete with keepers]()
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![Solar energy kit, comprising solar cells, motor, fan, on stand.]()
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![Prism, glass, 90/45/45º, 50 x 50 mm sides]()
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![Prism, glass, 60/60/60º, 50 x 50 mm sides]()
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![Photocell, selenium, mounted with connection for 4 mm plugs.]()
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![Optical bench, working length 1 m – 1.5 m approximately, graduated, with at least four saddles (at least two capable of fine traverse movement), levelling screws, lamp house and light source 12 V/24 W.]()
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![Lens, biconvex, optically worked glass with ground edge, 50 mm diameter. Focal length 150 mm.]()
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![Lens, biconcave, optically worked glass with ground edge, 50 mm diameter. Focal length 150 mm.]()
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![Density Sets]()
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![Glass block, optical quality, semi-circular for refraction experiments. _x005F_x000D_
Approximate size 90 x 18 mm (diameter x thickness). Polished on all sides.]()
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![Dual/single timer with segmented millisecond timer display(s), stop/start on single timer mode, dual stop/start, gated, suitable for use with PHY/306 above and PHY/309 below. Supplied complete with light gates. Two year warranty.]()
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![Lenses biconvex glass 50mm - 150 mm focal length, Pk/20]()
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