Light Waves

blue

indigo

red

violet

Light reflected from the object's surface must enter your eyes.

The object must have a shadow, for your brain to interpret what it is.

Light must be absorbed by the object and then refracted back to your eyes.

Light travels from the object, back to the light source, and then to your eyes.

electromagnetic waves cannot travel through solids.

electromagnetic waves travel at different speeds through different media.

electromagnetic waves compress more when they travel through denser media.

electromagnetic waves get closer together when they go through dense media like glass.

Light bends when it hits the object.

Light does not pass through the object.

Light completely reverses its direction.

Light pierces the object and continues to travel.