find the no. of electrons emitted per second by a 24W source of monochromatic light of wavelength 6600 angstrom, assuming 3 percent efficiency for photoelectric effect.
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When the cathode is exposed to light, electrons are ejected from its photosensitive surface. These electrons are attracted to the positive anode and form a current that can be measured with an electrometer. where h = Planck's constant, f = frequency of the light, and Φ is the work function of the cathode surface.
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