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Author Question: What is the maximum velocity (in km/s) of a photoelectron emitted from a surface whose work function ... (Read 66 times)

neverstopbelieb

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on: Jul 28, 2018
What is the maximum velocity (in km/s) of a photoelectron emitted from a surface whose work function is 5.0 eV when illuminated by a light whose wavelength is 200 nm?
 a. 460
  b. 650
  c. 420
  d. 550
  e. 1 480

Question 2

The threshold wavelength for photoelectric emission of a particular substance is 500 nm. What is the work function (in eV)?
 a. 4.2
  b. 4.0  10-19
  c. 4.0  10-10
  d. 2.5  10-19
  e. 2.5


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Ashley I

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Reply #1 on: Jul 28, 2018
Answer to Question 1

B

Answer to Question 2

E


neverstopbelieb

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Reply 2 on: Jul 28, 2018
Wow, this really help

chereeb

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Reply 3 on: Yesterday
Excellent

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