Light
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| Intensity | The rate at which energy flows through a unit area perpendicular to the direction of wave motion. For light it is the brightness.
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| Angle of Incidence | The angle between an incoming ray and a line that is normal to the striking surface.
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| Polarization | Waves in which the direction of vibration is the same for all waves.
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| Dispersion | The process of using a prism to separate light into its component wavelengths.
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| Electromagnetic Spectrum | The complete range of electromagnetic radiation.
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| Specular Reflection | The bouncing back of a light ray off of a smooth surface.
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| Focal length | The distance between the focal point and the lens or mirror.
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| Diffuse Reflection | The bouncing back of a light ray off of a rough surface.
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| Focal Point | The point where light rays meet after reflecting off of a curved mirror or refracting through a lens.
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| Lens | A transparent object that refracts light rays, causing them to converge or diverge, to create an image.
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| Diffraction | The spreading of waves into a region behind an obstruction.
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| Object distance (do) | The distance between an object and a lens or mirror.
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| Refraction | The bending of a wave as it passes at an angle from one medium to another.
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| Real Image | An image formed where light rays that have been reflected or refracted, converge.
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| Virtual Image | An image formed where light rays that have been reflected or refracted, appear to converge only.
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| Concave | A surface that is curving inward.
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| Convex | A surface that is curving outward.
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| Ray diagram | A model used to predict image formation.
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Created by:
stamback
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