In a hydrogen like atom electron makes transition from an energy level

Question:

In a hydrogen like atom electron makes transition from an energy level with quantum number $\mathrm{n}$ to another with quantum number $(n-1)$. If $n \gg 1$, the frequency of radiation emitted is proportional to:

 

 

  1. $\frac{1}{n}$

  2. $\frac{1}{\mathrm{n}^{2}}$

  3. $\frac{1}{n^{3 / 2}}$

  4. $\frac{1}{n^{3}}$


Correct Option: , 4

Solution:

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