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

Work function of the metal is given as
Charge on an electron,
Planck’s constant,
Wavelength of the incident radiation,
Speed of light,
The energy of the incident photon can be calculated as:

   



   


The incident radiation has a lower energy than the metal’s work function. As a result, there is no photoelectric emission.