Answer :

We know, according to Bohr’s Model, the energy ∆E released, when electrons move from n₂ energy level to n₁ energy level is given by,


Now, given that hydrogen is in its ground state. So n₁=1.


Substituting, n₂=2, we get ∆E=10.2 eV.


Thus, the electrons will be released from n=2 level to n=1 level.


Substituting, n₂=3, we get ∆E=12.08 eV.


Thus, the electrons will be released from n=3 level to n=1 level.


This, corresponds to the Lyman Series(infrared region).


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