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מקור האור הוא מרכיב במערכת הרכבה לניסויי פוטו-אלקטריות.
The system consists of its components (SKU: 444471,444470, 444468, 444469, 670) for photoelectric experiments, to illustrate the effect of acceleration voltage and stop voltage on the strength of the photoelectric current in the flow circuit.
In constructing a graph of the dependence of the stopping voltage on the radiation frequency, one can findPlanck's constant, and the workingfunction (bond energy) of the emitting cathode. The threshold frequencyis also revealed through this relationship.
The composition is precise, the error is relatively small.
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