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Light Rays a Useful Fiction
in The Speed of Light
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amplitude atoms axis bands beam blue bright carbon disulfide color crystal dark deviated diameter diffraction direction disk distance Doppler effect double refraction double star electric field electric waves elementary waves emitted energy experiment Fraunhofer lines frequency glass plate grating homogeneous inch incidence infrared light instance interference fringes interferometer invisible lamp layer lens light rays light source light waves liquid magnetic field measurement metal mica microscope mirror object observed opaque optical ordinary light oscillators parallel particles path difference phase photograph plane polarized light polarizing angle prism produce propagation refractive index right angles scattered screen shadow short-waved shown in Figure shows slit sodium sound source of light space spectral lines spectrum speed of light spot substance surface telescope tion total reflection transmitted transparent transverse waves tube ultraviolet vapor velocity vibrations visible light water waves wave length wave theory white light X rays yellow Zeeman effect