Assertion: In case of single refraction by a plane surface image and object are on same side.
Reason: If object is real, image will be virtual and vice-versa.

Options

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

Answer

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

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states that in the case of single refraction by a plane surface, the image and object are on the same side.
- For a plane surface (like a flat mirror), when light rays from a real object strike the surface, they refract. The rays diverge after refraction, and if we trace them backward, they appear to originate from a point behind the surface. This point is where the virtual image is formed.

2. **Understanding the Reason**:
- The reason states that if the object is real, the image will be virtual and vice-versa.
- A real object emits light rays that, when refracted through a plane surface, diverge. The virtual image formed is on the same side as the object because the rays do not converge but appear to come from a point behind the surface.

3. **Analyzing Both Statements**:
- Both the assertion and the reason are true:
- The assertion is true because the virtual image is formed on the same side as the real object after refraction.
- The reason is also true because a real object does indeed produce a virtual image when light rays diverge after refraction.

4. **Determining the Relationship**:
- However, the reason does not explain why the assertion is true. The assertion is based on the behavior of light rays at a plane surface, while the reason discusses the nature of the image concerning the type of object (real or virtual).
- Thus, while both statements are true, the reason does not provide a correct explanation for the assertion.

5. **Conclusion**:
- Therefore, the correct answer is that both the assertion and reason are true, but the reason is not the correct explanation of the assertion.

### Final Answer:
- Both assertion and reason are true, but the reason is not the correct explanation of the assertion.