Calculate angular momentum of an electron in the third Bohr orbit of hydrogen atom. 

Explanation

To calculate the angular momentum of an electron in the third Bohr orbit of a hydrogen atom, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Formula for Angular Momentum**:
The angular momentum (L) of an electron in the nth Bohr orbit is given by the formula:
\[
L = n \frac{h}{2\pi}
...