Short Title

The Photoelectric Effect


Photoelectric Effect, Current

Type of Submission



This manuscript discusses two experiments that rely on the theory behind the photoelectric effect. In the first experiment, we used a graph of frequency vs stopping voltage to measure Plank’s Constant. The value of Plank’s Constant was determined to be (6.67 ± 0.3) x 10-34 Js. In the second experiment, we created graphs of spectral lines of light at the same wavelength but different intensities in order to explore the relationship between these variables. The graph obtained was approximately the same shape as the theoretical graph.