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No photoelectrons are emitted from a met...

No photoelectrons are emitted from a metal if the wavelength of light exceeds 6000 `Å`.The work function of the metal is approximately equal to:

A

`3.315 xx 10^(-6)` J

B

`3.315 xx 10^(-19)`J

C

`2.07 xx 10^(19)`J

D

`2.07 xx 10^(-22)`J

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