Assertion : Acceleration of a moving particle can change its direction without any change in direction of velocity.
Reason : If the direction of change in velocity vector changes, the direction of acceleration vector also changes.

Options

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

Explanation

To solve the given question, we need to analyze both the assertion and the reason provided.

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states that "the acceleration of a moving particle can change its direction without any change in the direction of velocity."
- Acceleration is defined as the rate of change of velocity. If the velocity changes, then by definition, the acceleration must also change.

2. **Analyzing the Assertion**:
- For acceleration to change the direction of a particle's motion, the velocity must also change.
- Therefore, the assertion is **incorrect** because acceleration cannot change the direction of motion without affecting the velocity.

3. **Understanding the Reason**:
- The reason states that "if the direction of change in the velocity vector changes, the direction of the acceleration vector also changes."
- This is a true statement because acceleration is the result of the change in velocity. If the change in velocity (which is a vector) alters direction, then the acceleration (which is also a vector) must change direction as well.

4. **Analyzing the Reason**:
- Since the reason correctly describes the relationship between velocity and acceleration, it is **true**.

5. **Conclusion**:
- The assertion is false, and the reason is true. Therefore, the correct answer is that the assertion is false, but the reason is true.

### Final Answer:
- **Assertion**: False
- **Reason**: True