The discussion revolves around the behavior of photocurrent in relation to the potential applied across anode and cathode in the context of the photoelectric effect. The original poster questions why the photocurrent does not drop to zero when the potential equals the kinetic energy of the emitted electrons.
The discussion is ongoing, with participants offering insights and raising questions about the experimental setup and the behavior of the photocurrent. Some suggest that further exploration of the voltage range may be necessary to understand the observed results, while others express uncertainty about the expected outcomes.
There is mention of the original poster's experimental observations, including the use of various wavelengths of light and the expectation of a non-linear relationship between photocurrent and potential. The potential values applied and the nature of the resulting graphs are also under consideration.