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In Bohr series of lines of hydrogen spectrum, the third line from the red end corresponds to which one of the following inter-orbit jumps of the electron for Bohr orbits in an atom of hydrogen

Option: 1

3 \rightarrow 2


Option: 2

5 \rightarrow 2


Option: 3

4 \rightarrow 1


Option: 4

2 \rightarrow 5


Answers (1)

best_answer

As we have learnt,

Balmer series of Hydrogen spectrum lies in the visible region.

Therefore, the transition corresponding to the least energy or largest wavelength is n=3 to n=2 which corresponds to red colour

So, the third line from red end will be of the transition from n=5 to n=2

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