MCQ
Orbital acceleration of electron is
  • $\frac{n^2 h^2}{4 \pi^2 m^2 r^3}$
  • B
    $\frac{n^2 h^2}{2 n^2 r^3}$
  • C
    $\frac{4 n^2 h^2}{\pi^2 m^2 r^3}$
  • D
    $\frac{4 n^2 h^2}{4 \pi^2 m^2 r^3}$

Answer

Correct option: A.
$\frac{n^2 h^2}{4 \pi^2 m^2 r^3}$
$m v r=\frac{n h}{2 \pi} \Rightarrow v=\frac{n h}{2 \pi m r} \Rightarrow \frac{v^2}{r}=\frac{n^2 h^2}{4 \pi^2 m^2 r^3}$.

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