1 . A parallel light beam at a wavelength of 2 0 0 nm is incident normally...
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A parallel light beam at a wavelength of nm is incident normally on the surface of a metal of which the work function is eVa Determine the shortest de Broglie wavelength of the electrons photoelectrically ejected from the surface.b If the intensity of the light beam is Wm determine the number of electrons ejected from a square centimeter of the metal surface each second. Assume that the probability of each photon being absorbed by a electron is c Determine the potential that can stop the electrons from being ejected from the metal surlace.
Related Book For
Fundamentals of Physics
ISBN: 978-1118230725
10th Extended edition
Authors: Jearl Walker, Halliday Resnick
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