What is the frequency of oscillation 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 1: Understand the situation
In a freely falling cabin, both the pendulum and the cabin are accelerating downwards due to gravity. This means that the pendulum does not experience any restoring force acting on it, as everything inside the cabin is in free fall.

### Step 2: Recall the formula for the time period of a simple pendulum
The time period \( T \) of a simple pendulum is given by the formula:
\[
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