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01010.0 points A surface whose work function is $1.8eV$ is illuminated by a light whose wavelength is $108nm$. What is the maximum velocity of a photoelectron emitted from the surface? The speed of light is $3×10_{8}m/s$ and Planck's constant is $6.63×10_{−34}J⋅s$. Answer in units of $km/s$.

The energy of a photon with wavelength ? can be calculated using the formula: