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The change of speed of light as it moves from one medium to a different medium
The light ray that changes its path after entering a new medium
Angle of Refraction
The angle made between the normal and the refracted ray
The numerical value given to optical density. Can be calculated as a ratio of (sin i)/(sinr) OR as c/v
A measure of how much light will slow down in a medium
Total Internal Reflection
The complete reflection of a light ray. Happens when the ray begins in the medium with the larger refractive index, and the angle of incidence is greater than the critical angle
The angle after which total internal reflection will occur
Focus (Focal point)
The point light rays converge on after passing through a lens.
Line that passes through the optical center of the lens
distance between the optical center and the focal point
A collectin of prisms, used to refract light
The middle of a lens
Position with the top on top, and the bottom on the bottom
An image formed by the divergence of light rays
An image created by the convergence of light rays.
A tool used by doctors to see inside of patients
A transparent tool used with light rays
A space that has no matter (including air)
A lens that sends light rays away from each other
The distance between the lens and the object
The distance between the image and the lens.
The edge of separation between two things
Thin glass or plastic that is used to transmit information by light
The 2-D plane in which the focus lies