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  4. The amount of energy emitted if electron falls from n=3 to n=2 , in hydrogen atom is

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Q. The amount of energy emitted if electron falls from $n=3$ to $n=2$ , in hydrogen atom is

NTA AbhyasNTA Abhyas 2020Structure of Atom

Solution:

$\Delta E = E _{3}- E _{2}=13.6\left[\frac{1}{(2)^{2}}-\frac{1}{(3)^{2}}\right]=1.9 eV$