Why do the pendulum clocks go slow in summer and fast in winter?

Explanation

### Step-by-Step Solution:

1. **Understanding the Pendulum Clock**: A pendulum clock operates based on the oscillation of a pendulum. The time period (T) of a simple pendulum is given by the formula:
\[ T = 2\pi \sqrt{\frac{L}{g}} \]
where:
- \( T \) = time period of the pendulum
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