The time period of a 1 m long pendulum approximates to ........

General Science (NDA) Physics

The time period of a 1 m long pendulum approximates to

This questions was previously asked in

2022 NDA -1 GAT

6 s

4 s

2 s

1 s

- The period of a pendulum depends on its length and gravity.

- For a pendulum of length $ L $ in meters, the period $ T \approx 2\pi \sqrt{\frac{L}{g}} $, where $ g \approx 9.8 \, \text{m/s}^2 $.

- Plug in $ L = 1 $ m:

$$T \approx 2\pi \sqrt{\frac{1}{9.8}} \approx 2.01 \, \text{s}$$

- Option 1: 6 s is too long, does not fit the calculation.

- Option 2: 4 s is also too long.

- Option 3: 2 s is very close to the calculated value.

- Option 4: 1 s is too short.

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