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What is the work function (w(o)) of the ...

What is the work function `(w_(o))` of the metal whose threshold frequency `(v_(0))` is `5.2 xx 10^(14)s^(-1)` ?

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Threshold frequency of metal ` (v_0) =5.2xx10^(14) s^(-1)`
work function `(W_0) = hv_0`
` W_0 = 6.626xx10^(-34) Js xx5.2 xx10 ^(14) S^(-1)`
Work function `(W_0) = 3.44xx10^(-19)J`
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