Semi-Circular Refraction Cell, Acrylic, 12 cm Dia X 2.5 cm High, 1 Each

The United Scientific® Semi-Circular Refraction Cell, Acrylic is a clear acrylic cell, 12 cm diameter x 2.5 cm high, used to show refraction and internal reflection in water and to measure its refractive index. Uniform wall thickness eliminates distortions from the container itself. Physics teachers use it with ray boxes and protractors in school and college optics labs.