Physics 2 Quiz
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A researcher illuminates a metal surface with monochromatic light of frequency ff and measures the stopping potential V0V_0. She then doubles the intensity of the light while keeping the frequency constant. In a separate experiment, she uses a different metal with a work function that is exactly twice the original metal's work function, illuminating it with light of frequency 2f2f.
Which of the following correctly compares the maximum kinetic energy of photoelectrons KEmaxKE_{max} in the original experiment versus the separate experiment with the second metal at frequency 2f2f?
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