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his project is like, a ray of light should travel through a medium and it should split and travel through 3 different rooms. One room (party light), other room (shadowed light) and another is normal light |
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Answer» The basic element in geometrical optics is the light ray, a hypothetical construct that indicates the direction of the propagation of light at any point in space. The origin of this concept dates back to early speculations regarding the nature of light. By the 17TH century the Pythagorean notion of visual RAYS had long been abandoned, but the observation that light travels in straight lines led naturally to the development of the ray concept. It is easy to IMAGINE representing a narrow beam of light by a collection of parallel arrows—a bundle of rays. As the beam of light moves from one medium to another, reflects off surfaces, disperses, or comes to a focus, the bundle of rays TRACES the beam’s progress in a simple geometrical manner. |
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