Here's a breakdown:
* Reflection: The bouncing back of light when it hits a surface.
* Reflectivity: The measure of how well a surface reflects light. Different materials have different reflectivities. For example, a mirror has high reflectivity, while a black cloth has low reflectivity.
It's important to note that reflectivity is not a single property, but rather a combination of several factors including:
* Surface smoothness: Smooth surfaces reflect light in a more predictable way, resulting in a clear reflection.
* Surface material: Different materials absorb and reflect light differently. Metals are known for their high reflectivity, while non-metals often absorb more light.
* Angle of incidence: The angle at which light hits a surface affects how it reflects.
Let me know if you have any other questions!