Question

experiment of photocelk​

Answer 1

Figure 1. The photocell experiment is designed to measure the stopping potential on the anode (collector) that stops the flow of electric current from the cathode by applying a negative potential on the anode. The incident light is reflected on a Silicon cathode plate with an electric potential that is proportional to the difference between temperature of the source of radiation and the cathode plate. The stopping voltage is recorded by the voltmeter and the temperature of the source of radiation is determined by the wavelength of the incident radiation through Wien's law of radiation. 
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