Reflection
What is reflection?
When light bounces off a surface.
What is refraction?
The bending of light when it passes from one medium to another.
What is total internal reflection?
The phenomenon in which light reflects completely inside a material.
What is a diverging lens?
A lens that spreads light rays apart.
What is the Law of Reflection?
The rule that says the angle of incidence is equal to the angle of reflection.
What is glass?
Light slows down in this type of medium (air or glass?).
What is denser to less dense?
It occurs when light travels from a denser medium to a less dense medium.
What is a converging (convex) lens?
A lens that brings light rays together.
What is regular (specular) reflection?
This type of reflection happens on smooth surfaces like mirrors.
What is the normal?
When light goes from air to water, it bends toward the normal line
What is the critical angle?
The minimum angle required for total internal reflection to occur.
What is the focal point?
The point where parallel rays meet after passing through a converging lens.
What is diffuse reflection?
This type of reflection happens on rough surfaces and scatters light.
What is the refractive index?
The measure of how much a material slows down light.
What is total internal reflection?
Fiber optic cables work because of this phenomenon.
What is a virtual image?
The type of image formed by a diverging lens.
What is the angle of incidence?
The angle between the incoming ray and the normal line is called this.
What is Snell’s Law?
The formula that relates angles and refractive indices.
What is total internal reflection?
If the angle of incidence is greater than the critical angle, only reflection occurs.
What is the lens equation?
The equation 1/f = 1/do + 1/di.