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24 Cards in this Set
- Front
- Back
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Optics
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the branch of physics that studies physical properties of light and their applications
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Light
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electromagnetic radiation that is visible by the human eye
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Photon
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packet of electromagnetic radiation that can be considered as either a particle or/and a wave
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Light Ray
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line that performs the path of light in a given direction of propagation through mediums
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Reflection of Light
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phenomenon when light can be bounced from surfaces of objects
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Specular Reflection
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reflection of light rays from a very smooth surface.
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Diffuse Reflection
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reflection of light from a rough surface
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Plane Mirror
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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
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Spherical Mirror
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spherical reflecting surface, which can form real and virtual images
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Focal Point
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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
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Ray Diagram
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the method by which the image formation can be performed in mirrors, lenses, and optical instruments
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Reference Rays
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are rays whose optical paths in lenses and mirrors are known
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Optical Image
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the image that can be formed by mirrors, lenses, and optical instruments
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Index of Refraction
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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
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Refraction of Light
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change in direction of a light ray as it passes from one medium into another medium where its speed changes
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Total Internal Refraction
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phenomenon in which a light ray incident on an interface is totally reflected and no refraction occurs at an interface
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Fiber Optics
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branch of physics dealing with the transmission of light and images through glass and plastic fibers known as optical fibers
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Lens
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shaped piece of a transparent material that bends light rays by refraction
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Optical Instrument
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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
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Human Eye
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human optical device that forms a real, inverted image on a light sensitive surface inside of human eye called the retina
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Magnifying Glass
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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
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Telescope
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optical instrument enabling the magnification of distant objects
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Binocular
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optical instrument used by both eyes for viewing distant objects
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Microscope
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optical instrument uses to obtain magnified images of small objects
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