What is the frequency of osciallation of a simple pendulum mounted in a cabin that is freely falling under gravity?

Explanation

To find the frequency of oscillation of a simple pendulum mounted in a cabin that is freely falling under gravity, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Pendulum's Time Period**:
The time period \( T \) of a simple pendulum is given by the formula:
\[
T = 2\pi \sqrt{\frac{L}{g_{\text{effective}}}}
...