What is the S.I. unit of displacement ?

Explanation

**Step-by-Step Solution:**

1. **Understanding Displacement**: Displacement is a vector quantity that refers to the change in position of an object. It is the shortest distance from the initial position to the final position of the object, along with the direction.

2. **Relation to Length**: Since displacement measures how far an object has moved from its starting point, it is fundamentally a measure of length.

3. **S.I. Units**: The International System of Units (S.I.) is a standardized system used globally for scientific measurements.

4. **Unit of Length**: The S.I. unit of length is the meter (m). Therefore, since displacement is a measure of length, its S.I. unit is also the meter.

5. **Conclusion**: Thus, the S.I. unit of displacement is meter (m).

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