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Question

Is threshold a frequency?


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Solution

The threshold frequency:

  1. A minimal frequency below which, regardless of the strength of the incident radiation, photoelectric emission is not achievable.
  2. A frequency is a threshold. It is described as the lowest frequency needed for a radiation incident to produce a photoelectric emission.
  3. Photoemission is the term used to describe the process by which photoelectrons are emitted from the metal surface as a result of light.

Hence, the threshold is the lowest frequency needed for a radiation incident to produce a photoelectric emission.


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