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A Photocell Is a Device That Operates Using the Photoelectric ϕ\phi

Question 57

Multiple Choice

A photocell is a device that operates using the photoelectric effect.What metal should be used if it is desired that the photocell operate using visible light?


A) manganese ( ϕ\phi = 4.1 eV)
B) gadolinium ( ϕ\phi = 2.90 eV)
C) cesium ( ϕ\phi = 2.14 eV)
D) beryllium ( ϕ\phi = 4.98 eV)

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