| 单词 | light quantum |
| 释义 | > as lemmaslight quantum light quantum n. Physics a discrete particle of light with a specific energy proportional in magnitude to the frequency of the radiation; = photon n.1 3. ΘΚΠ the world > matter > physics > electromagnetic radiation > light > [noun] > smallest unit of light light quantum1925 photon1926 the world > matter > physics > atomic physics > particle physics > photon particle > [noun] light quantum1925 photon1926 1925 D. L. Thomson in J. A. Thomson Sci. & Relig. App. 250 It follows from the modern ‘Quantum Theory’..that there are ‘smallest-possible’ amounts of light, which we might call light-atoms or, better, light-quanta. 1974 Sci. Amer. Oct. 68/1 Carbohydrates are the direct result of the photosynthetic activity of green plants... The energy needed to promote this reaction is provided by light quanta from the sun. 2019 Indian Educ. News (Nexis) 30 Apr. One light quantum is required to eject one electron. < as lemmas |
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