Photoelectric Effect: in a Photoelectric Effect Experiment, Electrons Emerge from a Copper

question 33

Multiple Choice

Photoelectric effect: In a photoelectric effect experiment, electrons emerge from a copper surface with a maximum kinetic energy of 1.10 eV when light shines on the surface. The work function of copper is 4.65 eV. Which one of the following values is closest to the wavelength of the light? (h = 6.626 × 10^-34 J ∙ s, c = 3.00 × 10⁸ m/s, 1 eV = 1.60 × 10^-19 J)

• A) 220 nm
• B) 150 nm
• C) 360 nm
• D) 1100 nm

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