Determine the speed of the electron in n=3 orbit of hydrogen atom .

Explanation

To determine the speed of the electron in the n=3 orbit of a hydrogen atom, we can use the Bohr model of the atom. Here’s a step-by-step solution:

### Step 1: Understand the Bohr Model
The Bohr model describes the hydrogen atom as having electrons in specific orbits around the nucleus. Each orbit corresponds to a specific energy level, denoted by the principal quantum number \( n \).

### Step 2: Use the Formula for Electron Speed
According to the Bohr model, the speed of the electron in the nth orbit can be calculated using the formula:
\[
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