Franck-Hertz Argon Tube Experiment Set is a scientific kit designed to demonstrate the principles of quantum mechanics, particularly the quantization of energy levels in atoms. This experiment is based on the famous Franck-Hertz experiment, which involves measuring the energy loss of electrons after collisions with atoms. In the case of the Argon tube version, the set uses argon gas as the medium for these collisions. This Franck-Hertz Apparatus is designed for college students to demonstrate the existence of quantized states. The experiment can be performed in less time because the use of Argon tube eliminates the need for tube heating (as in the case of a Mercury filled tube).