The connection between how light hits a surface and how it bounces off is simple and really cool!

Let's break it down:

• Angle of Incidence ($i$): This is the angle made when light comes in and meets an imaginary line that goes straight up from the surface. We call this line the normal line.

• Angle of Reflection ($r$): This is the angle made when light bounces off and meets that same normal line.

Here’s the important part: The law of reflection tells us that these angles are always equal! So, we can say:

$$i = r$$

This means that the angle at which the light hits the surface is the same as the angle at which it bounces away! This idea is true for all types of waves, like light and sound.