The Work Function of a Certain Material Is 4

question 66

Multiple Choice

The work function of a certain material is 4.9 eV.What is the photoelectric cut-off wavelength for this material?

• A)1.3 * 10^-7 m
• B)2.5 * 10^-7 m
• C)3.3 * 10^-7 m
• D)3.9 * 10^-7 m
• E)4.4 * 10^-7 m

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