A: The maximum possible magnetization of a paramagnetic sample is of the same order of magnitude as the magnetization of a ferromagnet.
R: Saturation of paramagnetic substnaces requires imparactically high magnetising fields.

Options

A. If both Assertion & Reason are the true and the reason is the correct explanation of the assertion, then mark (1)
B. If both Assertion & Reason are true but the reson is not the correct explanation of the assertion, then mark (2)
C. If Assertion is true statement but Reason is false, then mark (3)
D. If both Assertion and Reason are false statements, then mark (4)

Answer

To analyze the statements given in the question, we will break down the assertion (A) and the reason (R) step by step.

### Step 1: Understanding Assertion (A)
The assertion states that "The maximum possible magnetization of a paramagnetic sample is of the same order of magnitude as the magnetization of a ferromagnet."

- **Explanation**:
- Paramagnetic materials can become magnetized in the presence of an external magnetic field, but they do not retain this magnetization once the field is removed.
- Ferromagnetic materials, on the other hand, can retain their magnetization even after the external field is removed and can achieve much higher levels of magnetization (saturation).
- However, under certain conditions, particularly when subjected to a sufficiently high magnetic field, the magnetization of a paramagnetic sample can reach levels comparable to that of ferromagnetic materials.

### Step 2: Understanding Reason (R)
The reason states that "Saturation of paramagnetic substances requires impractically high magnetizing fields."

- **Explanation**:
- For paramagnetic materials to reach saturation magnetization, an extremely high magnetic field is necessary. This is because the alignment of magnetic dipoles in paramagnetic materials is weak compared to ferromagnetic materials.
- In practical scenarios, achieving such high fields may not be feasible, which limits the saturation magnetization of paramagnetic substances.

### Step 3: Evaluating the Relationship Between A and R
Now we need to evaluate if the reason (R) correctly explains the assertion (A).

- **Analysis**:
- Both statements are correct. The assertion acknowledges that under high magnetic fields, paramagnetic materials can achieve magnetization comparable to ferromagnets.
- The reason explains the condition required for this assertion to hold true, which is the need for high magnetizing fields to achieve saturation in paramagnetic materials.

### Conclusion
Both the assertion (A) and the reason (R) are correct. However, the reason does not directly explain the assertion because it does not clarify that the maximum magnetization of paramagnetic samples is only comparable to ferromagnets under specific conditions (high magnetic fields).

### Final Answer
- Assertion (A) is correct.
- Reason (R) is correct but does not adequately explain (A).