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What Is the Kinetic Energy of the Photoelectrons Emitted from a Sodium

Question 5

Multiple Choice

What is the kinetic energy of the photoelectrons emitted from a sodium surface ( Φ\varPhi = 2.9 * 10-19 J) when it is irradiated by photons with a wavelength of 350 nm?


A) 2.9 *10-19 J
B) 5.7 * 10-19 J
C) 0 J
D) 2.8 * 10-19 J
E) 3.6 * 10-19 J

Correct Answer:

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