PHYS 041C Lecture Notes - Lecture 5: Uncertainty Principle, Wave Packet, Diffraction Grating
Document Summary
It is most similar to a grating experiment since the x-rays scatter from each of the crystal. E=hf does not change for massive particles; it is the same for both photons and particles. This may be something you think you now understand or something that you still don"t understand after reading the book. The fact that we can know a position but can"t simultaneously know its precise momentum, and vice versa, is a bit confusing to me. Due to wave particle duality, passing atoms one by one will create an interference pattern. 1/meter or m -1 it is the inverse of the unit length. Since these have an inverse relationship, we would actually require a less precise knowledge of the momentum of the particle. If the particle had a known position, then the particle cannot simultaneously a well known momentum. The heisenberg uncertainty principle states that (deltax)(delta p) = (h-hat)/2.
