photoelectric threshold
noun Physics.
the minimum frequency or maximum wavelength of incident radiation necessary to release photons from a given surface.
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Nearby words
- photoelectric cell,
- photoelectric current,
- photoelectric effect,
- photoelectric magnitude,
- photoelectric meter,
- photoelectricity,
- photoelectron,
- photoelectrotype,
- photoemission,
- photoeng.
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019