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3
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The change in direction of a propagating wave, such as light or sound
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5
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To move, lie, or extend in different directions from a common point; branch off.
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6
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A ray that passes through the axis of an optical fiber.
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7
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The point on the axis of a lens or mirror to which parallel rays of light converge or from which they appear to diverge after refraction or reflection
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8
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The angle which the indecent ray makes the normal equal to the angle and the reflected Ray make the same normal
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9
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When a beam of light crosses the boundary between a vacuum and another medium, or between two different media, the wavelength of the light changes, but the frequency remains constant.
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10
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To scatter or cause to scatter; disseminate; disperse
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11
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To tend to meet in a point or line; incline toward each other, as lines that are not parallel.
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13
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A ray of light that strikes a surface. The angle between this ray and the perpendicular or normal to the surface is the angle of incidence.
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14
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Curved like a segment of the interior circle
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