Franck Hertz Experiment Supplier in India
In the famous 1914 experiment, James Franck and Gustav Hertz accelerated electrons toward a metal collection grid inside a glass envelope that contained mercury vapor. As the acceleration voltage was increased, so too did the collected current until reaching a level where electron energy levels reached sufficient levels to cause mercury atoms to be excited into excited states. This led to the appearance of a strong line in mercury’s ultraviolet spectrum at 254nm (4.9volts). A sudden drop in current at threshold voltage demonstrated that atomic energy levels are discrete and discontinuous; providing experimental confirmation for Niels Bohr’s model of the atom.
The digital Franck Hertz Experiment is an advanced laboratory instrument capable of conducting an experiment automatically or manually by scanning an accelerating voltage. Additionally, this device automatically collects and displays data onto a curve; measures first excitation potential of an argon atom; determines Planck constant h; supports screen printing of experiment reports and offers data storage services.
This device features an LCD touch screen and is easy to operate and read directly, making it suitable for teaching and training, with its 360 degree visible argon tube or external argon tube providing 360 degrees of visibility for teaching or training purposes and verifying quantized energy levels in high school or colleges.
