The threshold frequency for a photosensi...

The threshold frequency for a photosensitive metal is `3xx10^(14)Hz`. The work function of the metal is approximately equal to `[h=6.66xx10^(-34)Js]`

`0.5xx10^(-19)` J

`1.0xx10^(-19)`J

`1.5xx10^(-19)J`

`2.0xx10^(-19)J`

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The correct Answer is:

`W_(0)=hv_(0)=6.66xx10^(-34)xx3xx10^(14)=2xx10^(-19)J`

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MARVEL PUBLICATION-ELECTRONS AND PHOTONS -TEST YOUR GRASP - 17

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