Radiometer Crook'S, Plastic Base, Evacuated Glass Bulb Have Black And White Vanes In Color. Mounted On Round Plastic Moulded Base, Comprising Partly Evacuated Glass Bulb Approx. 70 mm Diameter, Containing At Its Centre A Fine Pivot Which Supports Four Light Weight Metal Arms.
Double Convex round Lens, Material: Glass, designed for physics and educational uses, Because of their educational use design, there may be minor imperfections that do not affect physical function, for educational use, Size: 100mm focal length, 2in diameter and 16.5mm thick
Double Convex round Lens, Material: Glass, designed for physics and educational uses, Because of their educational use design, there may be minor imperfections that do not affect physical function, for educational uses, Size: 50mm focal length, 2in diameter and 15.5mm thick
Diffraction Grating Glasses, 500lines/mm, Highly efficient, Single axis holographic diffraction grating lenses separate light from any source into its spectral components for study/analysis, Used with Power Supply/ Spectrum Gas Tubes, Make study of light easy
Prism, R Index 1.51 - Designed for Spectrometer, Weight (lb): 0.1, Length (in):0.5, Width (in): 0.4, Height (in): 0.2, Borosilicate crown glass with a refractive index of 1.51
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