Reflection And Refraction Flashcards
= is the bouncing back of light when it hits a barrier or boundary of another medium.
REFLECTION OF LIGHT
are places where light is
“blocked”:
Shadows
TWO TYPES OF REFLECTION
Regular
Diffuse
When an object surface is smooth, and you see an image.
REGULAR
When a rough surface scatters light in many directions, and no image appears.
DIFFUSE
= is a property of a given
transparent medium which is the inverse measure of the speed of light through the medium.
OPTICAL DENSITY
This means that the ——— the optical density of a medium, the ——— the speed of light through the medium.
higher
slower
= is the bending of light when it travels from one medium to another.
REFRACTION OF LIGHT
= It is the illusion that objects under the water appear to be nearer the surface than they really are.
APPARENT DEPTH
When the ray of light strikes the surface
INCIDENT RAY
The ray which comes back after reflection.
REFLECTED RAY
The perpendicular line drawn at the point of incidence.
NORMAL
The angle between the normal and incident ray.
ANGLE OF INCIDENCE
The angle between the normal and reflected ray.
ANGLE OF REFLECTION
The angle of incidence is always ——— to the angle of reflection.
equal
