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The excimer laser used in these treatments produces ultraviolet light with a wavelength of 210nm .
The excimer laser used in these treatments produces ultraviolet light with a wavelength of 210nm .What is the difference in energy between the two levels that participate in stimulated emission in the excimer laser?ΔE = 5.90eV ..How many photons from this laser are required to deliver an energy of 1.61×10−13J to the cornea?A negligible amount of this energy goes to the resulting 5726Fe atom as kinetic energy. About 90 percent of the time, after the electron-capture process, the 5726Fe nucleus emits two successive gamma-ray photons of energies 0.122MeV and 1.30×10−2MeV in decaying to its ground state. The electron-capture process itself emits a massless neutrino, which also carries off kinetic energy. What is the energy of the neutrino emitted in this case?
