Atomic StructureHard

Question

In a sample of hydrogen atoms, all the atoms are in a particular excited state. If the emission spectrum of this sample has only 4 spectral lines in the visible region, then the total number of spectral lines in IR region possible from that state is

Options

A.6
B.5
C.7
D.15

Solution

Excited state is n = 6 [3 → 2, 4 → 2, 5 → 2, 6 → 2]

∴ Number of spectral lines in 1R region = 6.

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