Nickel shows ferromagnetic property at room temperature. If the temperature is increased beyond curie temperature, then it will show

Options

A. diamagnetism
B. paramagnetism
C. anti ferromagnetism
D. no magnetic property

Explanation

To solve the question, we need to understand the properties of nickel in relation to its magnetic behavior and the significance of the Curie temperature.

### Step-by-Step Solution:

1. **Understanding Ferromagnetism**:
- At room temperature, nickel exhibits ferromagnetic properties. This means that the magnetic moments of the atoms in nickel are aligned in the same direction, resulting in a net magnetic field.

2. **Curie Temperature**:
- The Curie temperature (T_C) is the temperature above which a ferromagnetic material loses its ferromagnetic properties and becomes paramagnetic. For nickel, the Curie temperature is approximately 358°C.

3. **Effect of Temperature Increase**:
- When the temperature of nickel is increased beyond its Curie temperature, the thermal energy becomes sufficient to disrupt the alignment of the magnetic moments.

4. **Transition to Paramagnetism**:
- As a result of this disruption, nickel transitions from a ferromagnetic state to a paramagnetic state. In the paramagnetic state, the magnetic moments are no longer aligned and only respond to an external magnetic field.

5. **Conclusion**:
- Therefore, if the temperature of nickel is increased beyond its Curie temperature, it will show paramagnetic properties.

### Final Answer:
When the temperature of nickel is increased beyond its Curie temperature, it will show paramagnetic properties.