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| it is the top of the wave |
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| the distance between one crest (or trough) and other |
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| a bundle of energy that is released when an atom loses some energy |
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| the number of waves (crests or troughs) that pass a point in a given amount of time |
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Definition
| the distance between a wave's mid-point and its crest or trough |
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| a wave in which the crests and troughs move at right angles to the direction of the wave's travel |
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Definition
| allows light to pass threw easily |
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Definition
| does not allow light to pass through easily ,reflects almost all light |
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Definition
| allows some light to pass through and reflects some light back.It diffuses light. |
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| Some light boucnes off (reflects) some light goes through |
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| Light bouncing off of objects |
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Definition
| Used to focus light to a point |
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| Used to magnify an object |
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