LIGHT,
COLOR, AND
WAVE INTERACTION

When light strikes an object it is:

When light strikes an object it is:
1)
Reflected

When light strikes an object it is:
1)
2)
Reflected
Transmitted

When light strikes an object it is:
1)
2)
3)
Reflected
Transmitted
Absorbed

What happens to the light depends on the
material of the object it strikes:

What happens to the light depends on the
material of the object it strikes:

Transparent (clear) materials- transmit light

What happens to the light depends on the
material


Transparent (clear) materials- transmits light
Translucent (see through) materials- scatters the
transmitted light

What happens to the light depends on the
material



Transparent (clear) materials- transmit light
Translucent (see through) materials- scatters the
transmitted light
Opaque (not see through) materials- absorbs and
reflects
1. The color of an opaque object is the color of the
light it reflects!

Example- An orange is orange because it absorbs
every color BUT orange; instead it reflects orange!

The color of an opaque object is the
color of the light it reflects!
 What
would happen if you
attempted to shine a red light on
objects that were not red?
They would appear black!
2. The color of a transparent or translucent object
is the color of the light it transmits!

Example- A red filter transmits red light so the stop
sign appears red!

The color of a transparent or
translucent object is the color of the
light it transmits!
 What
would happen if the red
filter was not in front of a red
object?
The object would appear black!


Color is the
perceptual quality
of light.
The human eye
can distinguish
almost ten million
colors.
http://photographycourse.net/wp-content/uploads/2008/03/rgb_illumination-


Complementary colors are any two colors that
combine to form white light.
Every secondary color is the complement of a
primary color.
Yellow + Blue = White Light
Cyan + Red = White Light
Magenta + Green = White Light


As pigments are added together, fewer colors
of light are reflected and more absorbed.
The more pigments that are combined the
darker the pigment looks.

Video 1

Video 2