WHITEBOARD ONLY

A comprehensive and economical set of equipment for ray optics and color experiments using magnetic-backed components that can be used on the included whiteboard or any installed steel whiteboard. This set is a great value! The set's topic range includes the optics of lenses, mirrors and prisms, measurement of the refractive index of water and clear acrylic polymer, demonstration of dispersion, primary and secondary colors and color mixing. The whiteboard has a usable surface of 23" x 15.5" (58.5 cm x 39.5 cm) and has swiveling feet on two sides so that it can be set up in wide or tall format. The double-ended light box contains a 12V/20W halogen lamp, powered by a wall-mount AC adapter and cooled by a built-in fan. One end carries a cylindrical lens and slots for mounting the three slit diaphragms for ray optics. The other end carries two adjustable mirrors and an open area for color mixing work using colored filters that fit into slots in the ray box. The lenses and prisms are acrylic and are typically 3" long. They include a convex lens, a concave lens, a semicircular lens, a rectangular block, a right angle prism, an equilateral prism, a 30°/60°/90° prism, and a hollow rectangular cell for water refraction. A plane mirror and an adjustable convex/concave mirror are included. A matched set of seven color filters is used for color mixing experiments, and a corresponding set of seven colored paddles is provided to demonstrate subtractive color mixing. A 10" x 10" white card screen is available for examining dispersion spectra produced by the prisms, and a set of four magnets holds a card protractor circle for refractive index measurements. The set is accompanied by a manual of experiments, and is stored in a sturdy box with molded inserts.