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24 Cards in this Set

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  • Back
Optics
the branch of physics that studies physical properties of light and their applications
Light
electromagnetic radiation that is visible by the human eye
Photon
packet of electromagnetic radiation that can be considered as either a particle or/and a wave
Light Ray
line that performs the path of light in a given direction of propagation through mediums
Reflection of Light
phenomenon when light can be bounced from surfaces of objects
Specular Reflection
reflection of light rays from a very smooth surface.
Diffuse Reflection
reflection of light from a rough surface
Plane Mirror
flat reflecting surface, which can form an upright, virtual image that islocated as far behind the mirror as the object is in front of the mirror
Spherical Mirror
spherical reflecting surface, which can form real and virtual images
Focal Point
point where spherical mirrors and/or lenses focus parallel light rays, when they are directed along an optical axis of a spherical mirror or a lens
Ray Diagram
the method by which the image formation can be performed in mirrors, lenses, and optical instruments
Reference Rays
are rays whose optical paths in lenses and mirrors are known
Optical Image
the image that can be formed by mirrors, lenses, and optical instruments
Index of Refraction
the physical quantity that shows in how many times the speed of light in vacuum is bigger than speed of light in any other medium
Refraction of Light
change in direction of a light ray as it passes from one medium into another medium where its speed changes
Total Internal Refraction
phenomenon in which a light ray incident on an interface is totally reflected and no refraction occurs at an interface
Fiber Optics
branch of physics dealing with the transmission of light and images through glass and plastic fibers known as optical fibers
Lens
shaped piece of a transparent material that bends light rays by refraction
Optical Instrument
device that makes use of one or more lenses or mirrors, or of a combination of these, in order to change the path of light rays and produce an image
Human Eye
human optical device that forms a real, inverted image on a light sensitive surface inside of human eye called the retina
Magnifying Glass
optical device that consists of a single converging lens that forms an enlarged, upright, and virtual image of an object, which is placed at or inside the focal point of the lens
Telescope
optical instrument enabling the magnification of distant objects
Binocular
optical instrument used by both eyes for viewing distant objects
Microscope
optical instrument uses to obtain magnified images of small objects