Light of wavelength \( 400\, \text{nm} \) falls on a metal with work function \( \phi = 2.0\, \text{eV} \). If the intensity of the light is doubled, what happens to the maximum kinetic energy of the emitted photoelectrons?
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\textbf{Tip:} In photoelectric effect, intensity affects the number of emitted electrons, but not their maximum kinetic energy.