Lens Holder for 50mm Lens with 8mm Rod Attachment Item Type_Labware used to demonstrate standing waves

used to demonstrate standing waves in air through powder-pile node spacing measurements

Pack of 10 Stoddard test tube clamps in stainless steel with finger grip securely holds test tubes during heating

and image-formation experiments

Vernier reading to 6 arcminutes on a 0-360 degree scale lets the rotatable analyzer measure optical rotation through the 20cm sample tube of this Laurent half-shade polarimeter

supporting both rheostat and potentiometer use

Lens Holder for 50mm Lens with 8mm Rod Attachment Item Type_Labware used to demonstrate standing waves8mm rod attachment and a centered 50mm aperture together hold a lens square against an optical bench rail for repeatable refraction, focal length, and image formation experiments.