Which statement relating to the spectrum of $H$ atom is false:

  • A
    The lines can be defined by quantum number
  • B
    The lines of longest wavelength in the Balmer series corresponds to the transition between $n=3$ and $n=2$ levels
  • C
    The spectral lines are closer together at longer wavelength
  • D
    $A$ continuum occurs at $n = \infty$

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