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The angular dispersion of a prism in the ratio of

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  • Speed of light — The speed of light in the vacuum of free space is an important physical constant usually denoted by the letter c . [NIST and BIPM practice is to use c 0 for the speed of light in vacuum in accord with international standard ISO 31 5. See… …   Wikipedia

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  • radiation — radiational, adj. /ray dee ay sheuhn/, n. 1. Physics. a. the process in which energy is emitted as particles or waves. b. the complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and… …   Universalium

  • light — light1 lightful, adj. lightfully, adv. /luyt/, n., adj., lighter, lightest, v., lighted or lit, lighting. n. 1. something that makes things visible or affords illumination: All colors depend on light. 2. Physics …   Universalium

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  • constringence — ▪ optics also called  Reciprocal Dispersion        in optics, a measure of the dispersive power of a transparent substance for the visible spectrum. Letting nF, nD, and nC represent the indices of refraction for light of the wavelengths λF (blue) …   Universalium

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