Images are formed by...........

Options

A. Regular reflection
B. Irregular reflection
C. Diffused reflection
D. Reflection

Explanation

To solve the question "Images are formed by...........", we will analyze the options provided and understand the concept of image formation in physics.

### Step-by-Step Solution:

1. **Understanding Reflection**:
- Reflection occurs when light rays strike a surface and bounce back. There are different types of reflection: regular (specular) reflection and diffused (scattered) reflection.

2. **Regular Reflection**:
- Regular reflection happens on smooth surfaces (like mirrors) where parallel rays of light are reflected in a single direction. This type of reflection forms clear images.

3. **Diffused Reflection**:
- Diffused reflection occurs on rough surfaces (like paper or walls) where light rays are scattered in many directions. This type of reflection does not form clear images but allows us to see the surface.

4. **Irregular Reflection**:
- Irregular reflection is similar to diffused reflection, where the surface is uneven, causing light to scatter in various directions, thus not producing a distinct image.

5. **Conclusion**:
- Images are primarily formed by regular reflection, as this type of reflection allows for the formation of clear and distinct images.

### Final Answer:
Images are formed by **reflection** (specifically, regular reflection).

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