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Question: 

What is the maximum kinetic energy of electrons ejected from barium ($W_0$ = 2.48 eV) when illuminated by white light, $\lambda$ = 400 to 750 nm?

Giancoli, Douglas C., Physics: Principles with Applications, 7th Ed., ©2014. Reprinted by permission of Pearson Education Inc., New York.
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Quick Answer: 

$0.62 \textrm{ eV}$

Giancoli 7th Edition, Chapter 27, Problem 22

(1:80)

Chapter 27, Problem 22 is solved.

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