Bohr's Model for Hydrogen Atom

Question

In a Bohr’s model of an atom, when an electron jumps from n = 1 to n = 3, how much energy will be emitted or absorbed ?

Easy

Solution

Energy of electron when n = 1

Energy of electron when n = 3

$-21.7\times {10}^{-12}\times \frac{8}{9}=0.1928\times {10}^{-10}\mathrm{ergs}$

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