In an experiment it is found that the magnetic susceptibility of given substance is much more greater than one. The possible substance is

Options

A. diamagnetic
B. paramagnetic
C. ferromagnetic
D. nonmagnetic

Explanation

To solve the question regarding the magnetic susceptibility of a given substance being much greater than one, we need to analyze the types of magnetic materials and their corresponding magnetic susceptibilities.

### Step-by-Step Solution:

1. **Understanding Magnetic Susceptibility**:
- Magnetic susceptibility (χ) is a measure of how much a material will become magnetized in an applied magnetic field. It indicates the degree of magnetization of a material in response to an external magnetic field.

2. **Types of Magnetic Materials**:
- There are three main types of magnetic materials:
- **Ferromagnetic Materials**: These materials have a high magnetic susceptibility (χ >> 1). They can retain magnetization even after the external magnetic field is removed.
- **Paramagnetic Materials**: These materials have a positive magnetic susceptibility (χ > 0 but typically < 1). They are weakly attracted by a magnetic field and do not retain magnetization once the field is removed.
- **Diamagnetic Materials**: These materials have a negative magnetic susceptibility (χ < 0). They are weakly repelled by a magnetic field and do not retain magnetization.

3. **Analyzing the Given Information**:
- The problem states that the magnetic susceptibility of the substance is much greater than one. This indicates that the substance is likely to be a ferromagnetic material, as ferromagnetic materials are characterized by having a magnetic susceptibility significantly greater than one.

4. **Conclusion**:
- Since the magnetic susceptibility of the given substance is much greater than one, we conclude that the substance is a **ferromagnetic material**.

### Final Answer:
The possible substance is a **ferromagnetic material**.