Semicircular Acrylic Block, 90 x 25mm

This acrylic semicircular block measures 3.5 x 0.9375 inches (90 x 25mm) with polished sides for optimal light transmission. It is designed for ray box experiments, refraction, and reflection studies in physics instruction. The clear acrylic construction allows students to observe light passing through the block and bending at the curved and flat surfaces, demonstrating Snell's law and the relationship between angle of incidence and angle of refraction. The semicircular shape ensures that light entering through the curved surface strikes the flat surface at a predictable angle. Durable enough for repeated classroom use.