A photon of wavelength 4 x 10 m strikes on metal surface, the work fun – InterviewSolution

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1.	A photon of wavelength 4 x 10 m strikes on metal surface, the work function ofthe metal being 2.13 eV. Calculate () the energy of the photon (ev), (i) the kineticenergy of the emission, and (iii) the velocity of the photoelectron(1 eV 1.6020 x 1019J).
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