large number of hydrogen atoms excited to the n_h4,how many spectral lines can appear in the emission spectrum as a result of electron reaching the ground state n_1=1

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  1. 4 to 3
    4 to 2
    4 to 1
    3 to 2
    3 to 1
    2 to 1
    6 total

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  2. 4 to 1

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