Which of the following gives good evidence for the particle nature of EM radiation?
photoelectric effect
interference patterns
electron probability regions
diffraction
1 answer
The photoelectric effect is a phenomenon that provides good evidence for the particle nature of electromagnetic radiation. In the photoelectric effect, when light shines on a material and electrons are emitted, the energy of the ejected electrons is found to be dependent on the frequency of the light, rather than its intensity as predicted by wave theory. This behavior is more easily explained by considering light as a stream of particles (photons) rather than a continuous wave.
1 answer