The work function of a photoelectric mat...

The work function of a photoelectric material is 3.3 V. the threshold frequency will be equal to [Given that `h=6.6xx10^(-34)Js`]

`8.0xx10^(14)Hz`

`8.0xx10^(34)Hz`

`5.0xx10^(15)Hz`

`5.0xx10^(19)Hz`

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The correct Answer is:

Threshold frequency `v_(0)=(phi_(0)("in " J))/(h)=(phi_(0))/(e)h=(3.3xx1.6xx10^(-19))/(6.6xx10^(-34))=8.0xx10^(-14)Hz`

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