The emission spectrum of hydrogen discovered | vedclass

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(D) In $1885$, Johann Balmer for the first time showed that the wave numbers of spectral lines present in the visible region of the hydrogen spectrum

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Balmer, visible

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(D) In $1885$, Johann Balmer for the first time showed that the wave numbers of spectral lines present in the visible region of the hydrogen spectrum are given by the formula: $\bar{v} (cm^{-1}) = 109677 \left( \frac{1}{2^2} - \frac{1}{n^2} \right)$ Here, $n = 3, 4, 5, \dots$ Thus, the Balmer series of the hydrogen spectrum was discovered first, and it lies in the visible region of the electromagnetic spectrum.

The emission spectrum of hydrogen discovered first and the region of the electromagnetic spectrum in which it belongs, respectively, are

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