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The work function of a certain material is 3.2 eV. Determine the threshold frequency for the material. (1 electron Volt(eV) = 1.6 x 10-19 J and planks Constant h = 6.62 x 10-34Js)

The work function of a certain material is 3.2 eV. Determine the threshold frequency for the material. (1 electron Volt(eV) = 1.6 x 10-19 J and planks Constant h = 6.62 x 10-34Js)

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John
Work function, Wc = hfo = fo = $\frac{W_c}{h}$

= $\frac{3.2\times 1.6\times 10^{-19}}{6.62\times 10^{-34}}$

= 7.734 x 1014Hz
johnmulu answered the question on February 21, 2017 at 12:15

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