Physics 310 them. The path is called a ray of light, and a bundle of such rays constitutes a beam... more Physics 310 them. The path is called a ray of light, and a bundle of such rays constitutes a beam of light.
Physics 310 them. The path is called a ray of light, and a bundle of such rays constitutes a beam... more Physics 310 them. The path is called a ray of light, and a bundle of such rays constitutes a beam of light.
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