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Calculate the threshold frequency of met...

Calculate the threshold frequency of metal if the binding energy is `180.69 kJ mol^(-1)` of electron.

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The correct Answer is:
`4.5xx10^(14)s^(-1)`
`B.E.=180.69kJ//"mole"impliesw=hv_(0)`
`(180.69)/(96.368)eV//"atom"=hv_(0)`
`(180.69)/(96.368)xx1.6xx10^(-19)=6.6xx10^(-34)xx v_(0)`
`v_(0) = 6.626xx10^(-34)`
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