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If an electron of angular L and spin S Quantum numbers placed in external magnetic field B. If electron is in initial condition n2 write its hamiltonian and analyze its zeeman spectrum?
we construct a latter operator in the form of a = p − iα tanh(x), with α ∈ R, how do I get
a+a =
The resting wavelengths (ie when the star is stationary) for the Balmers series lines are as follows:

In a spectral measurement of a star, the wavelength of 486,157 nm was measured.
a) What is the radial velocity of the star relative to the earth? By radial velocity is meant that the direction of velocity is an extension of the Earth's radius toward the star. In other words, "straight to or from" the Earth.
b) Was the movement directed at or away from us?

Find the deBroglie wave length of (a)an electron whose speed is1.0×108m/s,and (b)an electron whose speed is2.0×108m/s.


For the eigenstate with n=o,1, and 2 ,compute the probability that the coordinate of a linear harmonic oscillator in its ground state has value greater than oscillator than the amplitude of a classical oscillator of the same energy level
5. A hunter aims directly at a target (on the same level) 75.0 m.
a) If the bullet leaves the gun at speed of 180m/s by how much will it miss the target?
b) At what angle should the gun be aimed so as to hit the target?
A constant which has no unit
⦁ Ultraviolet light of wavelength 207 nm causes photoemission from a surface? The stopping potential is 2 V. Find (2) the work function in eV; (b) the maximum speed of the photoelectrons
⦁ Photons of wavelength (i) 5000 Å and (ii) 2000 Å are incident on the surface of silver (Work Function = 4.7 eV). Explain whether electrons are able to come out of the surface or not. If not, why not
A photon of energy E is scattered by a particle of rest energy Eo. Find the maximum kinetic energy of the recoiling particle in terms of E and Eo.