Assertion: At neutral point, a compass needle may point out in any arbitrary direction.
Reason: Magnetic field of earth is balanced by field due to magnets at neutral point.

Options

A. If both Assertain and Reason are true and Reason is the correct explanation of Assertain
B. If both Assertain and Reason are true but Reason is not correct explantion of Assertain
C. If Assertion is true but Reason is false
D. If Assertion is false but Reason in true.

Answer

To solve the question, we need to analyze the assertion and the reason provided:

**Assertion:** At neutral point, a compass needle may point out in any arbitrary direction.

**Reason:** Magnetic field of earth is balanced by field due to magnets at neutral point.

### Step-by-Step Solution:

1. **Understanding the Concept of Neutral Point:**
- A neutral point is a location in a magnetic field where the net magnetic field is zero. This occurs when the magnetic field produced by external magnets (or other magnetic sources) exactly cancels out the magnetic field of the Earth.

2. **Analyzing the Magnetic Field at the Neutral Point:**
- At the neutral point, the magnetic field of the Earth (which has a specific direction) is counteracted by the magnetic field produced by nearby magnets. This results in a situation where the total magnetic field is zero.

3. **Behavior of the Compass Needle:**
- A compass needle aligns itself with the magnetic field around it. If the magnetic field is zero (as it is at the neutral point), there is no specific direction for the compass needle to align with. Therefore, the compass needle can point in any arbitrary direction.

4. **Evaluating the Assertion and Reason:**
- The assertion states that at the neutral point, a compass needle may point in any arbitrary direction, which is true because the net magnetic field is zero.
- The reason states that the magnetic field of the Earth is balanced by the field due to magnets at the neutral point, which is also true because this balance leads to the condition of zero net magnetic field.

5. **Conclusion:**
- Both the assertion and the reason are true, and the reason correctly explains why the assertion is true. Therefore, the answer is that both the assertion and reason are true, and the reason is the correct explanation for the assertion.

### Final Answer:
Both assertion and reason are true, and the reason is the correct explanation for the assertion.

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