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(C) In the photoelectric effect,the saturation photoelectric current is directly proportional to the intensity of the incident light,provided the freq

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is doubled

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(C) In the photoelectric effect,the saturation photoelectric current is directly proportional to the intensity of the incident light,provided the frequency of the incident light is greater than the threshold frequency $(ν > ν_0)$.Since the intensity of the incident light is doubled,the number of photons incident per unit time also doubles.Consequently,the number of photoelectrons emitted per unit time doubles,leading to a doubling of the saturation photoelectric current.Therefore,the correct option is $C$.

In a photoelectric experiment,if the intensity of incident light is doubled and the frequency is kept slightly greater than threshold frequency,then the saturation photoelectric current

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