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2
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single path light follows, represented by an arrow on a diagram
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7
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expressing rays as arrows, also called 'ray optics'
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8
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the line directly in the middle of an incident ray and reflected ray
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9
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the angle between the reflected ray and the normal
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10
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a plane surface that bounces off light
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11
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meeting something at 90 degrees
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12
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a flat surface
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13
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when an image is 'upside down' in relation to the object
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14
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light hitting an object's surface
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15
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parallel rays bounce off a rough surface and the reflected rays and reflected rays go different directions
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16
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the angle between the incident ray and the normal
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