From the given data calculate the number of revolutions of an electron in the second Bohr orbit in one second

Explanation

To calculate the number of revolutions of an electron in the second Bohr orbit in one second, we will follow these steps:

### Step 1: Determine the radius of the second Bohr orbit

The formula for the radius of the nth Bohr orbit is given by:

\[
r_n = 0.53 \times \frac{n^2}{Z} \times 10^{-8} \text{ cm}
...