Which of the following is correct for the Humphrey series of the hydrogen spectrum?

  • A
    $n_2 = 7 \to n_1 = 2$
  • B
    $n_2 = 10 \to n_1 = 6$
  • C
    $n_2 = 5 \to n_1 = 1$
  • D
    $n_2 = 11 \to n_1 = 3$

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