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Light beams A and B are depositing the same amount of energy per square meter on a surface, but the wavelength associated with beam A is longer than that associated with beam B. The photon flux (number crossing a unit area per unit time) is:
a) Greater for A than for B
b) Greater for B than for A
c) The same for A and for B
d) Cannot be determined without knowing the work function of the surface and the stopping potentials for the photoelectrons produced by each beam

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Category:- Physics
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