Here's a breakdown:

* Reflection: The process by which light bounces off a surface.

* Reflected light: The light that is bounced back from the surface.

The way light reflects depends on the surface:

* Smooth surfaces: Reflect light in a predictable, mirror-like way (specular reflection).

* Rough surfaces: Scatter light in many directions (diffuse reflection).

Let me know if you'd like to know more about specific types of reflection!