When we see an object the image formed on the retina is

Options

A. real
B. virtual
C. erect
D. inverted.

Answer

To answer the question, "When we see an object, the image formed on the retina is...", we need to analyze how the eye functions in terms of optics.

### Step-by-Step Solution:

1. **Understanding the Eye as an Optical System**:
- The human eye can be modeled as a converging lens system. The lens in the eye focuses light rays coming from an object onto the retina, which acts as a screen.

2. **Formation of Image**:
- When light rays from an object enter the eye, they pass through the cornea and the lens. The lens focuses these rays to form an image on the retina.

3. **Nature of the Image**:
- The image formed on the retina is a real image. This is because the lens converges the incoming parallel rays (from distant objects) to a point on the retina.

4. **Inversion of the Image**:
- The image formed by the lens is inverted. This means that the top of the object appears at the bottom of the image on the retina and vice versa.

5. **Characteristics of the Image**:
- The image is also smaller than the object due to the distance from the lens to the retina being less than the object distance when viewing distant objects.

6. **Conclusion**:
- Therefore, when we see an object, the image formed on the retina is a **real, inverted, and diminished image**.

### Final Answer:
The image formed on the retina is a real and inverted image.