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The work function for a certain metal is 4.2 eV. Will this metal give photoelectric

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asked Jan 8, 2018 by sforrest072 (157,439 points) ● 61 ● 410 ● 949

The work function for a certain metal is 4.2 eV. Will this metal give photoelectric emission for incident radiation of wavelength 330 nm?

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answered Jan 8, 2018 by mdsamim (213,225 points) ● 5 ● 10 ● 15
selected Jan 8, 2018 by sforrest072
 
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The energy of the incident photon is given as:

It can be observed that the energy of the incident radiation is less than the work function of the metal. Hence, no photoelectric emission will take place.

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