Lens Holder for 50mm Diameter Lens or Mirror Item Type_Tongs producing more sinusoidal oscillation than

producing more sinusoidal oscillation than a standard helical spring for SHM studies

Six-piece polypropylene beaker set spans 50mL to 2000mL for complete classroom and lab volumetric workflows without glass breakage risk

sized for color-coded bench wiring at the positive rail

a 50mm double-convex glass lens spanning 300-1000mm focal lengths gives projection-style optics setups a single range-rated element

Lens Holder for 50mm Diameter Lens or Mirror Item Type_Tongs producing more sinusoidal oscillation thanVersatile holder accepting either a 50mm diameter lens or mirror, the dual purpose mount giving optics setups one fewer accessory to track across reflection and refraction experiments.