Explain hydrogen atoms are excited by a laser

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Hydrogen atoms are excited by a laser to the n = 4 state and then allowed to emit. What is the maximum number of distinct emission spectral lines (lines of different wavelengths) that can be observed from this system? 1-2-3-4-5-6-7-8 Calculate the wavelength of the 4 3 transition.

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Explain hydrogen atoms are excited by a laser : Hydrogen atoms are excited by a laser to the n = 4 state and then allowed to emit. What is the maximum number of distinct emission spectral lines (lines of different wavelengths) that can be observed from this system? 1-2-3-4-5-6-7-8 Calculate the..
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