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Question : The lowest-frequency light that will produce a photoelectric effect is called the threshold frequency,...

Question : The lowest-frequency light that will produce a photoelectric effect is called the threshold frequency, and it is associated with the work function  (phi).


a) The threshold frequency of for indium is 9.96 x 10^14 s^-1 . What is the energy, in joule, of a photon of this radiation?


b) Determine the velocity of the ejected electron (due to the photoelectric effect) when Indium is exposed to light of wavelength 254 nm.

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