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Author Question: The work function of a certain metal is 1.90 eV. What is the longest wavelength of light that can ... (Read 77 times)

theo

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The work function of a certain metal is 1.90 eV. What is the longest wavelength of light that can cause photoelectron emission from this metal?
 
  A) 231 nm
  B) 14.0 nm
  C) 62.4 nm
  D) 344 nm
  E) 653 nm

Question 2

How many orders are in the spectra formed by a grating with 3000. lines/cm illuminated by red light of wavelength 600. nm?
 
  A) 1
  B) 5
  C) 0
  D) 4
  E) 3



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guyanai

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Answer to Question 1

E

Answer to Question 2

B




theo

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Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it


adf223

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Reply 3 on: Yesterday
:D TYSM

 

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