The force which tries to bring the body back to its mean position is called

Options

A. deforming force
B. restoring force
C. gravitational force
D. buoyant force

Explanation

To solve the question, "The force which tries to bring the body back to its mean position is called," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Context**:
- The question is related to oscillatory motion, where a body moves back and forth around a central point known as the mean position.

2. **Identifying the Forces**:
- In oscillatory motion, when a body is displaced from its mean position, there are forces acting on it that influence its movement.

3. **Types of Forces**:
- The forces mentioned in the question include:
- Deforming force
- Restoring force
- Gravitational force
- Buoyant force

4. **Analyzing Each Force**:
- **Gravitational Force**: This force acts downwards and does not bring the body back to its mean position.
- **Buoyant Force**: This force acts upwards in fluids and is not relevant to the mean position in oscillatory motion.
- **Deforming Force**: This force is related to the deformation of materials and does not specifically refer to the motion of a body returning to its mean position.
- **Restoring Force**: This is the force that acts to bring the body back to its mean position when it is displaced.

5. **Conclusion**:
- The force that tries to bring the body back to its mean position is the **restoring force**. This force is always directed towards the mean position and is responsible for the oscillatory motion.

### Final Answer:
The force which tries to bring the body back to its mean position is called the **restoring force**.

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