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(a) What potential difference must be applied to stop the fastest photoelectrons emitted by a nickel...

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Physics

(a) What potential difference must be applied to stop thefastest photoelectrons emitted by a nickel surface under the actionof ultraviolet light of wavelength 200 nm?

( The work function ofnickel is 5,01 eV )

      (b) Thework function of gold is 5.1 eV. What is the longest-wavelengthlight that can cause       photoelectron emission from gold?  

Answer & Explanation Solved by verified expert
3.9 Ratings (385 Votes)
a Energy of the fastest electrons emitted by nickel can befound by Einsteins photoelectric equationis the work function    See Answer
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