MCQ
How many spectral line of Balmer series present in visible region :
  • A
    $5$
  • $4$
  • C
    $2$
  • D
    $3$

Answer

Correct option: B.
$4$
b
For balmer series,

$n_{1}=2$ and $n_{2}=3,4,5,6, \ldots \ldots$

In balmer series, four spectral lines are available in visible region. These spectral lines have wavelengths greater than $400 \,nm$ and smaller than $700\, nm$.

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