Consider an electric circuit containing a light-sensitive elementwith a work function of 2.80×10⁻¹⁹. Monochromatic light of wavelength 7.00×10⁻⁷m is shone on the light-sensitive element in a beam with a constant power of 2.50×10⁻³W.
(i) Find the maximum velocity of the electrons that are ejectedfrom the light-sensitive element by the light
