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The Work Function of Sodium Is Φ\varPhi = 290 *10-19 J

Question 106

Multiple Choice

The work function of sodium is Φ\varPhi = 2.90 *10-19 J.What is the maximum wavelength that can cause the ejection of photoelectrons from a sodium surface?


A) 151 nm
B) 222 nm
C) 45.1 nm
D) 451 nm
E) 685 nm

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