Question: This problem is one of estimating the time lag (expected classically but not observed) in the photoelectric effect, let the intensity of the incident radiation

This problem is one of estimating the time lag (expected classically but not observed) in the photoelectric effect, let the intensity of the incident radiation be 0.01 W/m2.

(a) If the area of the atom is 0.01 nm2, find the energy per second falling on an atom.

(b) If the work function is 2 eV, how long would it take classically for this much energy to fall on one atom?

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