MCQ
The wave number of the first Lyman transition in $H$ atom spectrum is equal to the wave number of second balmer transition in the spectrum of
  • A
    $Li^{2+}$
  • B
    $Be^{3+}$
  • $He^+$
  • D
    $B^{4+}$

Answer

Correct option: C.
$He^+$
c

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