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08-05-2024
Physics

Answered

The work function for tungsten is 4.58 eV. Of the following, which is the best estimate of the threshold frequency required for the emission of photoelectrons from a tungsten cathode?
(A) 0.1 x 10¹⁵ Hz
(B) 0.5 x 10¹⁵ Hz 15
(D) 2 x 10¹⁵ Hz
(E) 3x10¹⁵ Hz

Answer :

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