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NEST2011PhysicsDual Nature of Matter

In a photoelectric setup, three metals M ₁, M ₂ and M ₃ with work functions ₁, ₂ and ₃ respectively (0 ₁ ₂ ₃ ) , are illuminated with light of frequency and wavelength . The currents i and voltages V are registered. The stopping potential and cutoff wavelength are denoted by V₀ and ₀ , respectively. Which plot below could be a possible outcome of the experiment?

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