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Photoelectric Effect
Linked via "photoelectric current"
The Role of Intensity
In the quantum model, increasing the intensity of the incident light means increasing the number of photons striking the surface per unit time, not the energy of individual photons. Therefore, higher intensity leads to a greater number of photoelectrons emitted (the photoelectric current), but it does not affect the maximum kinetic energy of any single emitted [… -
Photoelectric Effect
Linked via "photoelectric current"
Experimental Parameters and Data
The kinetic energy of the emitted electrons is usually determined by measuring the stopping potential ($V_s$). The stopping potential is the minimum negative voltage applied to a collector plate that is just sufficient to repel all photoelectrons, thereby reducing the photoelectric current to zero. If $e$ is the elementary charge, the maximum [kine…