Which kind of lens can form
an inverted image smaller than the object ?

Answer

To determine which kind of lens can form an inverted image smaller than the object, we will analyze the properties of different types of lenses.

### Step-by-Step Solution:

1. **Understanding Lenses**:
- There are two main types of lenses: **Convex lenses** and **Concave lenses**.
- A convex lens is thicker in the middle and thinner at the edges, while a concave lens is thinner in the middle and thicker at the edges.

2. **Image Formation by Lenses**:
- A **convex lens** can form both real and virtual images depending on the position of the object relative to the focal point.
- A **concave lens** always forms virtual images that are upright and smaller than the object.

3. **Conditions for Inverted Image**:
- For an image to be inverted, it must be a **real image**.
- A real image is formed when the object is placed outside the focal length of a convex lens.

4. **Size of the Image**:
- When the object is placed between the focal point and twice the focal length of a convex lens, the image formed is real, inverted, and smaller than the object.

5. **Conclusion**:
- Therefore, the kind of lens that can form an inverted image smaller than the object is a **Convex Lens**.

### Final Answer:
A convex lens can form an inverted image that is smaller than the object.

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