Can it be concluded that the photoelectric effect observed in one metal can also be observed in another metal under the same conditions.

Question

Shown is the typical photoelectric behavior of a metal as the anode-cathode potential difference ΔV is varied.a. Why do the curves become horizontal for ΔV ≳ 1 V? Shouldn’t the current increase as the potential difference increases? Explain.b. Why doesn’t the current immediately drop to zero for ΔV < 0 V? Shouldn’t ΔV < 0 V prevent the electrons from reaching the anode? Explain.c. The current is zero for ΔV < -2.0 V . Where do the electrons go? Are no electrons emitted if ΔV 6 -2.0 V? Or if they are, why is there no current? Explain.

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Chapter 27, Problem 13CQ

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Can it be concluded that the photoelectric effect observed in one metal can also be observed in another metal under the same conditions.

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Shown is the typical photoelectric behavior of a metal as the anode-cathode potential difference ΔV is varied.a. Why do the curves become horizontal for ΔV ≳ 1 V? Shouldn’t the current increase as the potential difference increases? Explain.b. Why doesn’t the current immediately drop to zero for ΔV < 0 V? Shouldn’t ΔV < 0 V prevent the electrons from reaching the anode? Explain.c. The current is zero for ΔV < -2.0 V . Where do the electrons go? Are no electrons emitted if ΔV 6 -2.0 V? Or if they are, why is there no current? Explain.

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