The speed of the electron is a hydrogen atom in the $n=3$ level is $\left(\right.$ Plank constant $\left.=6…

The speed of the electron is a hydrogen atom in the $n=3$ level is $\left(\right.$ Plank constant $\left.=6.6 \times 10^{-34} \mathrm{JS}\right)$
  1. $6.2 \times 10^5 \mathrm{~ms}^{-1}$
  2. $3.7 \times 10^5 \mathrm{~ms}^{-1}$
  3. $7.3 \times 10^5 \mathrm{~ms}^{-1}$
  4. $1.6 \times 10^5 \mathrm{~ms}^{-1}$

Solution

In hydrogen atom, $\mathrm{n}=3$ $\therefore \quad \mathrm{V}_3=2.18 \times 10^6 \times \frac{1}{3}=7.3 \times 10^5 \mathrm{~ms}^{-1}$

Asked in: AP EAMCET 2024 (20 May Shift 2)

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