Explain the theory for electron dispersion. Discuss its special case hence deduce the expression for Sellmeier's dispersion formula.
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- What is transitional element? Why does the presence of unpaired electrons make a substance paramagnetic in nature. Explain it with magnetic moment measurement.A conduction electron is confined to a metal wire of length (1.46x10^1) cm. By treating the conduction electron as a particle confined to a one-dimensional box of the same length, find the energy spacing between the ground state and the first excited state. Give your answer in eV. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: x10 AnswerQUESTION 2 a. i. State Laue condition. Refer to Fig.2. Draw a complete vector diagram to show the Laue condition for the given Bragg's plane (Lattice plane). Draw all the related vectors and show the origin of reciprocal lattice and valid reciprocal lattices. Based on the diagram determine the magnitude of vector G in term of magnitude of vector T. (21/2m) Lattice plane (hkl) Incident wave vector Ко Atom Atom Figure 2
- At what temperature would we find about half as many hydrogen atoms in first excited state as in the groundstate?..Photons from the Balmer series of hydrogen transitions are sent through a double slit. What must be the distance between the slits such that the lowest energy Balmer transition has a first-order maximum (maximum adjacent to the central maximum) at an angle of 2.00°? Express your answer in um. Type your answer... At what angle, in degrees, would the first maximum be for the fourth-lowest energy Balmer transition photon, when sent through the slits above? Type your answer... DOD Submitpls send me answer of this question in written form with expalantion and i will give you like sure Draw the projections for spin angular momentum. Calculate the angles between the z-axis and the spin angular momentum S of the electron in the up and down spin states.
- LIH dichetie sfhere of diektric Coutnt k and yalien R-Free chge is lnifamaly imbelel cnto we have dn a). Comfute Polariaten fiell P imnide dickatre? c)- what is total ebrizakm chage on SusfacesDescribe the tunneling of superconducting cooper pairsExplain the difference between the group velocity and the phase velocity. Tell which one is associated with the probabilistic center of mass of the electron.