Assertion: The image distance in the eye increases, when we increase the distance of an object from the eye.
Reason: For normal eye, image distance in the eye is fixed, being equal to distance of retina from the eye lens. The focal length of the eye lens is changed on account of accommodation power of the eye.

Options

A. If both Assertion and Reason are true and Reason is the correct explanation of Assertion
B. If both Assertion and Reason are true and Reason is 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 analyze the given assertion and reason, we will break down the concepts related to the human eye, image distance, and accommodation.

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states: "The image distance in the eye increases when we increase the distance of an object from the eye."
- In the human eye, the image is formed on the retina, which is a fixed distance from the eye lens. Therefore, the image distance (distance from the lens to the retina) does not change with the distance of the object.
- Thus, the assertion is **incorrect**.

2. **Understanding the Reason**:
- The reason states: "For a normal eye, image distance in the eye is fixed, being equal to the distance of the retina from the eye lens."
- This is true; the distance from the lens to the retina is constant in a normal eye.
- The reason also mentions that the focal length of the eye lens changes due to the accommodation power of the eye. This is also correct. The eye can adjust its focal length to focus on objects at different distances using ciliary muscles.
- Therefore, the reason is **correct**.

3. **Conclusion**:
- Since the assertion is false and the reason is true, the correct answer is that the assertion is wrong, and the reason is right.

### Final Answer:
- Assertion is false; Reason is true.