PS4-2 (SEP 7) In the late 1800’s it was widely believed that all light behaved like waves. However, scientists observed that exposing a sample of metal to a beam of light could knock electrons off the sample. This observation is explained by what is now known as the photoelectric effect which explains that when packets of light energy called photons collide with atoms in a material, electrons are emitted. Scientists first theorized that electrons were absorbing light energy and jumped out of the material with the same amount of energy they absorbed. To their surprise they found that when they shined a brighter light on the substance, the electrons didn’t leave with any more energy! Instead, all the electrons left with the same amount of energy as before but there were just more electrons emitted. Does the photoelectric effect support the wave model of light or the particle model of light? Defend your answer with information from the text.