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What will be the minimum frequency of li...

What will be the minimum frequency of light source to get photocurrent, from a metal surface having work function 2 eV ?

A

`4.8xx10^(14)Hz`

B

`5.8xx10^(14)Hz`

C

`7.8xx10^(14)Hz`

D

`2.8xx10^(14)Hz`

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A
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