1. Introducing Quantum Physics
“Quantum Theory Made Easy,” a series in which the concepts of quantum physics are broken down for lay audiences in a more digestible manner. More in-depth than most presentations for laypersons, but without the mathematical rigour needed by a specialist in the field.
So, you've heard that light is a wave/particle. Now you get to find out how we know this!
In this episode, we’ll be discussing the dual nature of light, starting with a brief overview of how light was determined to be an electromagnetic wave and what properties light was classically associated with. From there, we’ll present the results of Planck’s blackbody experiments and introduce the concept of quantization, which was how this whole quantum mess was started in the first place. After explaining how the quantum of action (h) works, we’ll move on to how it showed up in experiments that challenged the wave picture of light, and how Einstein, bremsstrahlung, and Compton, made it clear that light can behave like a particle.
Special thanks goes to the following resources for their (Fair-Use protected) material:
Best of Science: https://www.youtube.com/user/Best0fSc...
UC Berkeley: https://www.youtube.com/user/UCBerkeley
2. Quantum Theory
It's TV Documentary talking about the idea proposed by Einstein and Planck that energy is quantised, that is, energy comes in definite amounts with no half measures.
The quantum of electromagnetic energy (light) is the photon.
Every chemical element has a characteristic line spectrum (atomic fingerprint) that identifies it.
Wave-Particle Duality - Young's Double Slits Experiment (see also Year 12 Wave - Interference in Two Dimensions, Workbook p.120)