PHY-00512
Made of acrylic sheet on plastic base with levelling screws , Dia of the dial is to level the water in the tank150 mm this simple apparatus lets students observe angles of reflection, refraction, and complete internal reflection for a light ray that passes through two clear media. The apparatus consists of an acrylic water tank and a pivoting arm with a battery operated revolving laser source . The tank is half-filled with water and has a protractor printed on its back side.