Spectrum Tubes Deuterium, glass tubes approximately 10-1/4in (260mm) long, central capillary portion approximately 3-1/2in to 4in (90-100mm) long with electrodes sealed at both ends and connected to lead wires protected by metal caps.
Tube speed of the bubble, 30 per case, A bubble in each tube rises at a constant speed that depends on the type of fluid, the angle at which the tube is inclined, and to some extent, the temperature.This set provides students with practice setting up experiments and graphing data.