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`        Find the speed of the electron in the ground state of a hydrogen atom. The description of ground state is given in the previous problem.`
5 years ago

```							Sol Fe from previous problem No. 18 = 8.2 × 10^–8 N Ve = ?
Now, M base e = 9.12 × 10^–31 kg r = 0.53 × 10^–10 m
Now, Fe = M base ev^2/r ⇒ v^2 = Fe * r/m base e = 8.2 * 10^-8 * 0.53 * 10^-10/9.1 * 10^-31 = 0.4775 * 10^13 = 4.775 * 10^12 m^2/s^2
⇒ v = 2.18 * 10^6 m/s

```
5 years ago
```							Sol. Fe from previous problem No. 18 = 8.2 × 10^–8 N Ve = ?
Now, M base e = 9.12 × 10^–31 kg r = 0.53 × 10^–10 m
Now, Fe = M base ev^2/r ⇒ v^2 = Fe * r/m base e = 8.2 * 10^-8 * 0.53 * 10^-10/9.1 * 10^-31 = 0.4775 * 10^13 = 4.775 * 10^12 m^2/s^2
⇒ v = 2.18 * 10^6 m/s

```
5 years ago
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