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The Light Guide Demonstrator is used for showing how the phenomenon of total internal reflection may be used to confine light within a guide or fibre, thus leading to an
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A 75mm diameter, circular loudspeaker of 8 Ohm resistance.Contains a high flux ceramic magnet of nominal power rating 5W.Mounted in a rectangular plastic case and
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Spectrum Tube - Mercury VapourMercury vapour-filled discharge tube for studying typical spectra of the different gases and for use in calibrating spectrometers. The
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Spherical Meniscus Lens with Optically worked faces.Meniscus Lenses have two spherically curved sides. One side is concave, and the other side is
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Mounted Plane Glass Mirror - 100mm x 75mm Silvered back with protective coating Mounted on a painted wooden block, 20mm thick Dimensions: 100mm x 75mm
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Mounted Plane Glass Mirror - 75mm x 25mm Silvered back with protective coating Mounted on a painted wooden block, 20mm thick. Dimensions: 75mm x 25mm
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Pack of 3 Narrow Band Filters, recommended for A-level experiments including Planck's Constant.The filters include: Mercury Green: 546nm (510-570nm) Mercury Blue:
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Nickel plated iron, heavy gauge. Pack of 100 Length 75 mm
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For demonstrating the production of beat frequencies. Comprises two nickel plated forks A (440 Hz) mounted on individual wooden boxes. One fork is provided
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A pack of 30 cardboard periscope nets with mirrors. Allows pupils to make their own periscopes. Requires double sided tape for fixing the mirrors in place and
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The ancestor of all cameras, this hand-held Pinhole Camera obscura projects an image onto a screen inside the box. The wooden camera is supplied in kit form and has an authentic
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Plano-Convex Lenses made from clear glass with ground edges & optically worked faces, for educational purposes. Diameter: 50mm Focal Length: 140mm Power: +7D Refractive
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Plano-Cylindrical Lenses made from clear glass with ground ends and optically worked faces, for educational purposes. Dimensions: 50mm x 50mm. Power: +7D Material:
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Double-sided plastic plane mirrors with high quality mirror finish. These mirrors are flexible, unbreakable and can be cut into different shapes. They are ideal for use
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Spherical Meniscus Lens with Optically worked faces.Meniscus Lenses have two spherically curved sides. One side is concave, and the other side is
Back in stock shortly, please ask for due date
Spherical Meniscus Lens with Optically worked faces.Meniscus Lenses have two spherically curved sides. One side is concave, and the other side is
Back in stock shortly, please ask for due date
Spherical Meniscus Lens with Optically worked faces.Meniscus Lenses have two spherically curved sides. One side is concave, and the other side is
Back in stock shortly, please ask for due date
For the examination of the spectral composition of light sources, radiant bodies, etc. The instrument gives a brilliant spectrum with a dispersion of approx. 11 . The
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A pack of 10 spare polarimeter tubes for the Polarimeter (B8R05155)
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Polaroid Film bonded between thin clear sheets of flexible plastic. Maximum transmission (single plate): 32%. Extinction transmission: 0.005%. Dimensions: 150mm x
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Polaroid Film bonded between thin clear sheets of flexible plastic. Maximum transmission (single plate): 32%. Extinction transmission: 0.005%. Dimensions: 50mm x
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The Power Amplifier is a very useful classroom resource that allows students to amplify and listen to a variety of audio sources ranging from microphones and audio devices
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Clear glass triangular prism made from clear white optical glass with optically polished faces. For educational use. Angles: 90° x 45° x 45° Refractive index:
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Clear glass equilateral triangular prism made from white clear optical glass with optically polished faces. For educational use. Angles:
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