Explain how does (i) photoelectric current and (ii) kinetic energy of the photoelectrons emitted in a photocell vary if the frequency of incident radiation is doubled, but keeping the intensity same? Show the graphical variation in the above two cases.
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According to classical physics, it was predicted that photocurrent increases with increase in frequency of radiation and the kinetic energy increases with increase in the amplitude of the light. But the experiments proved otherwise.
It was clearly seen that energy of the electrons is directly related to the frequency of the radiation whereas the variation in current depends on the amplitude.
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