Reflection of Light:
Reflection of light is the bouncing back of light when it strikes a surface. It is an important phenomenon that allows us to see objects around us. The reflection of light follows certain rules and can occur on different types of surfaces.

Explanation:
1. Reflection on Smooth Surfaces:
- Reflection can occur on smooth surfaces, but it is not limited to them.
- When light strikes a smooth surface like a mirror or still water, it undergoes regular reflection, where the incident angle is equal to the reflected angle.
- The smoothness of the surface allows the light waves to bounce back in a well-organized manner, resulting in a clear and sharp reflection.

2. Reflection on Any Surface:
- Reflection can occur on any surface, whether it is smooth, rough, curved, or flat.
- When light strikes a rough surface, such as a wall or a piece of paper, it undergoes diffused reflection, where the incident angle is not equal to the reflected angle.
- The roughness of the surface causes the light waves to scatter in different directions, resulting in a hazy or blurred reflection.

3. Reflection on Flat Surfaces:
- Reflection is not limited to flat surfaces.
- While flat surfaces provide a clear and regular reflection, other surfaces can also reflect light.
- Curved surfaces like a spoon, a convex mirror, or a concave mirror can reflect light as well. The reflection on curved surfaces may cause the light to converge or diverge, resulting in different optical effects.

4. Reflection on Curved Surfaces:
- Reflection can occur on curved surfaces, but it is not exclusive to them.
- Curved surfaces can exhibit interesting reflection properties, such as focusing or enlarging the reflected image.
- Mirrors with different curvatures are commonly used to create various optical instruments like telescopes, microscopes, and magnifying glasses.

Conclusion:
In conclusion, the statement "Reflection can occur on any surface" is true. Reflection is not limited to smooth surfaces, flat surfaces, or curved surfaces. It can occur on a wide range of surfaces, including smooth, rough, flat, and curved surfaces. Understanding reflection is important for various applications in daily life and science.