The Newton’s Rings Apparatus consists of a plano-convex lens on top of a flat
glass plate, held together by a plastic frame. The pressure between the lens
and the plate can be adjusted by means of three thumbscrews. Additional Info: Newton's Ring Appartus Package Size(L x W x H): 2.5 X 2.5 X 2 (IN) Categories: Physics, Optics UNSPSC: 6.01046e+007 Country Of Origin: CHINA