Question

Light of wavelength 575 nm is directed at a metallic surface with a work function of 1.60 eV.
(a) What is the maximum kinetic energy of an electron emitted from this surface, in J?

(b) What is the maximum speed of this electron? (m = 9.11 × 10-31 kg)

(c) What is the de Broglie wavelength of this electron?

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