Question

Photosensitive surfaces are not necessarily very efficient. Suppose that the fractional efficiency of a Cesium surface is 1.0×10^-6, that is, one electron is released for every 10⁶ photons striking the surface. What is the photocurrent from such a Cesium surface if it is illuminated with 600 nm light from a 2.0 mW laser and all the electrons produced take part in the charge flow

Answer 1

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