Which one of the following leads to third line of Balmer spectrum from red end (For hydrogen atom)?
A
2⟶5
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B
5⟶2
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C
3⟶2
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D
4⟶1
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Solution
The correct option is A5⟶2 The transition 5⟶2 leads to third line of Balmer spectrum from red end (for hydrogen atom). The transition 4⟶2 leads to second line of Balmer spectrum from red end (for hydrogen atom). The transition 3⟶2 leads to first line of Balmer spectrum from red end (for hydrogen atom). Balmer series corresponds to transitions to n=2 level. The spectral lines belongs to visible region.