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The work function for Ceasium atom is 1....

The work function for Ceasium atom is 1.9 eV. Calculate the threshold frequency

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Work function `(w_0)=h_v,` where v0 is the threshold frequency `w_0=1.9__eV=1.9xx1.602xx10^(-19)JthereforeV_0=w_0/h=(1.9xx1.602xx10^(-19))/(6.626xx10^(-34))=4.594xx10^14s^(-1)`
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