Page 1 of 1Physics 2214 Problem Set #10 (Due 11:15 am, Thursday 11/20/07)1. YF 35.35 1. YF 35.56 2. YF 36.72 3. YF 38.10. [The electron-volt (symbol eV) is a unit of energy. See YF Sections 23.2 and 38.1. 1 eV is the magnitude of the electric potential energy change when an electron or proton moves through a potential difference of one volt, so 1 eV = e ×(1 V) ≈(1.602 ×10–19C)(1 J/C) = 1.602 ×10–19J.] 4. YF 38.51 5. YF 38.56. Do part (a) in the book, then: (b) What would be the theoretical maximum possible photocurrent, assuming that each photon in the beam ejects a photoelectron? (c) Suppose the photocurrent is actually i0because not every photon ejects a photoelectron—instead, each photon has a certain probabilityof ejecting an electron. If the power of the light beam is reduced by half, without changing anything else, what happens to the photocurrent? 6. A grating with 2500 slits and a slit spacing of 1.4 μm is illuminated with a mixture of light with two wavelengths, 650.0 nm and 650.8 nm.
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