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Define the term "threshold frequency" as used in photo electric emission.

      

State the meaning of the term "threshold frequency" as used in photo electric emission.

  

Answers


John
Minimum frequency of an incident radiation to cause emission of photo electrons.

OR

This is the minimum frequency of the radiation that will cause a photoelectric effect on a certain surface. The higher the work function, the higher the threshold frequency.
johnmulu answered the question on February 21, 2017 at 12:52


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Previous: Light of frequency 7.5 x 1014Hz strikes a metal surface whose work function is 4.0 x 10-19 J. Determine the kinetic energy of the emitted photoelectrons.

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