A cold hydrogen atom might have its electron oriented wrong magnetically the electron will flip its spin to align its magnetic moment with the proton 's B field When it does this, the atom (mostly the electron) emits a photon with energy 5 92E6 eV a) calculate this photon 's frequency b) calculate ...

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A cold hydrogen atom might have its electron oriented wrong magnetically; the electron will flip its spin

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A cold hydrogen atom might have its electron oriented "wrong" magnetically; the electron will "flip its spin" to align its magnetic moment with the proton's B-field . When it does this, the atom (mostly the electron) emits a photon with energy 5.92E6 eV.
a) calculate this photon's frequency .
b) calculate this photon's momentum .
c) calculate this photon's wavelength.