Light with an intensity of 10−10W/m2 is shone perpendicular to the surface a metal that has one free electron per atom. Distance between atoms approx 2, 6A˚. Based on the notion of light as a wave and the assumption that light evenly distributed over the entire metal surface, (a) how much energy each electrons per second? (b) if the electron binding energy is 4.7eV , how long does the electron collect energy to escape the metal surface?

Light with an intensity of 10−10W/m2 is shone perpendicular to the surface a metal that has one free electron per atom. Distance between atoms approx 2, 6A˚. Based on the notion of light as a wave and the assumption that light evenly distributed over the entire metal surface, (a) how much energy each electrons per second? (b) if the electron binding energy is 4.7eV , how long does the electron collect energy to escape the metal surface?

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