What is the work function \( \left(\mathrm{w}_{0}\right) \) of the metal whose threshold frequen...

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What is the work function \( \left(\mathrm{w}_{0}\right) \) of the metal whose threshold frequency \( \left(\mathrm{v}_{0}\right) \) is \( 5.2 \times 10^{14} \mathrm{~s}^{-1} \)?
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