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Q179. The work function of a metallic substance is 5 eV. Then threshold frequency is approximately

Physics — Dawn of Modern Physics — Question 179 of 217

A. 1.6x107 Hz
B. 8.68 x 1015 Hz
C. 9.68 x 1017 Hz
D. 1.2 x 1015 Hz

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The work function of a metallic substance is 5 eV. Then... | Physics MCQ #179 | Examora | Examora