Lens Holder for 50mm Lens with 8mm Rod Attachment Item Type_Labware supporting both rheostat and potentiometer

supporting both rheostat and potentiometer use

Designed for science experiments but can also be used in heaters and electrical appliances

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

and interference effects

pairing a 2-inch plastic wheel with a metal bearing for smooth

Lens Holder for 50mm Lens with 8mm Rod Attachment Item Type_Labware supporting both rheostat and potentiometer8mm 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.