Find the number of waves made by a Bohr electron in one complete revolution in the 3rd Bohr orbit.

Explanation

To find the number of waves made by a Bohr electron in one complete revolution in the 3rd Bohr orbit, we can follow these steps:

### Step 1: Understand Bohr's Postulate
According to Bohr's postulate, the angular momentum of an electron in the nth orbit is quantized and given by the formula:
\[ L = n \frac{h}{2\pi} \]
where \( L \) is the angular momentum, \( n \) is the principal quantum number (which is 3 for the third orbit), and \( h \) is Planck's constant.

### Step 2: Write the Expression for Angular Momentum
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