Optical Lens Set, 2", 6-Piece, Convex and Concave Capacity_25000mL one fitted with an exploder

one fitted with an exploder piston for impulse experiments

and accessories for comprehensive laboratory setup

Accurately measure current in circuits in real-time

iron nickel-plated hangers

suspended from 37

Optical Lens Set, 2", 6-Piece, Convex and Concave Capacity_25000mL one fitted with an exploderSPHERICAL Each lens is spherical in shape and measures 2" (50mm) in diameter FOCAL LENGTH VARIETY Converging and diverging focal lengths in 200mm, 300mm and 500mm OPTICALLY WORKED GLASS Made of high quality, optically worked glass. Highly polished with ground edges GREAT FOR PHYSICS CLASSROOMS This optically true lens set is excellent for physics classroom demonstrations in optics and light refraction Set of Six Optically True Concave & Convex Lenses