?A 400-nm laser beam is projected onto a calcium electrode. The power of the laser beam
Chapter 6, Problem 135(choose chapter or problem)
A 400-nm laser beam is projected onto a calcium electrode. The power of the laser beam is 2.00 mW and the work function of calcium is 2.31 eV. (a) How many photoelectrons per second are ejected? (b) What net power is carried away by photoelectrons?
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