What is Periodic Motion ? Give an example.

Answer

### Step-by-Step Text Solution

1. **Definition of Periodic Motion**:
- Periodic motion is defined as motion that repeats itself after a fixed interval of time. This means that the object in motion returns to its initial position after a specific duration.

2. **Understanding the Time Period**:
- The fixed interval of time after which the motion repeats is known as the time period (denoted as 'T'). It is a crucial aspect of periodic motion.

3. **Example of Periodic Motion**:
- A common example of periodic motion is the daily commute of a person from home to office and back.
- For instance, consider a person who leaves their home (point A) every morning at a specific time to travel to their office (point B).
- After working for a certain duration, they return home. This entire process occurs repeatedly every day, thus illustrating periodic motion.

4. **Conclusion**:
- In summary, periodic motion is characterized by its repetitive nature over a fixed time interval, and the example of commuting serves to illustrate this concept effectively.