Question 168: Atoms & Nuclei

Question

The momentum of an electron revolving in $$\mathrm{n}^{	ext {th }}$$ orbit is given by :
(Symbols have their usual meanings)

Accepted Answer

$$\because$$ $$mvr = {{nh} \over {2\pi }}$$
$$ \Rightarrow mv = {{nh} \over {2\pi r}}$$

Answer

$$\frac{\mathrm{nh}}{2 \pi \mathrm{r}}$$

Answer

$$
\frac{n h}{2 r}
$$

Answer

$$
\frac{\mathrm{nh}}{2 \pi}
$$

Answer

$$\frac{2 \pi r}{\mathrm{nh}}$$

Atoms & Nuclei