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单词 photoelectric effect
释义

WordReference Random House Unabridged Dictionary of American English © 2024
photoelectric effect′, [Physics.]
  1. Physicsthe phenomenon in which the absorption of electromagnetic radiation, as light, of sufficiently high frequency by a surface, usually metallic, induces the emission of electrons from the surface. Also called photoemission. 
  • 1890–95

Collins Concise English Dictionary © HarperCollins Publishers::
photoelectric effect n
  1. the ejection of electrons from a solid by an incident beam of sufficiently energetic electromagnetic radiation
  2. any phenomenon involving electricity and electromagnetic radiation, such as photoemission
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