Reflection: mirror, mirror on the wall Reflection of light is
how we ‘see’ things at all, regardless of color. Light waves
from the sun--which, as it emanates its own light, is known as a
luminous source—are reflected by all the objects in their path.
All objects, that is, except those that allow light to pass
through them, like glass, for example. These objects are called
transparent, but the vast majority of matter obstructs light
waves, and is called opaque. As these objects obstruct the path
of light, it is forced to deviate, i.e. it is forced to change
its path as it bounces of the obstruction. This “bouncing off”
is known as reflection, and when light bounces off opaque
objects and enters our eyes, which are then able to “see” things
once the light sensed is processed and analyzed by the brain.
For this demonstration of reflection of light, you will need a
laser pointer, a room with no windows with a mirror on the wall
and any type of spraying device (ask mom for some room freshener
or window cleaner or