Ray Track Apparatus


Comprises a wooden board with painted white, mounted on non-skid plastic feet, and a removable turntable about 170mm in diameter with two orthogonal lines along its diameter dividing it into four equal quadrants. Just beyond the rim of turntable, a circular scale graduated 90º-0-90º-0-90º × 1º is printed. Also includes a Ray Box with a 12V, 24W bulb. Supplied complete with a cylindrical convex lens of focal length about 75mm and two double slits, giving one wide beam slit and one each of single, triple and five slits.

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