Franck-Hertz Experiment
In 1914 Franck & Hertz experimentally proved that the energy transferred from electrons to atoms always has discreet values and the values obtained for energy levels are in agreement with spectroscopic results.
In 1914 Franck & Hertz experimentally proved that the energy transferred from electrons to atoms always has discreet values and the values obtained for energy levels are in agreement with spectroscopic results. Thus experimentally proving the Bhor’s Model. It is a landmark experiment and can e performed in any college lab.
The experiment consists fo the following :-
- Argon filled tetrode
- Filament Power Supply
- 3.6-4.3 continuously variable
- Power Supply for VG1K 1.3-5V continuously variable
- Power Supply for VG2A 1.3-15V continuously variable
- Power Supply for VG2K 0-95V continuously variable
- Saw tooth waveform for CRO display Scanning Voltage :0-80V Scanning Frequency : 115+20 Hz
- Multirange Digital Ammete Display : 3½ digit, LED -7 -8 -9A Range : 10 , 10 & 10
The instrument can not only lead to a plot of the amplitude spectrum curve by means of point by point measurement, but also directly display the amplitude spectrum curve on the oscilloscope screen. This instrument can thus be used as classroom experiment as well as for demonstration to a group of students.