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Author Question: If a monochromatic light beam with quantum energy value of 4.0 eV is incident upon a photocell where ... (Read 104 times)

erika

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If a monochromatic light beam with quantum energy value of 4.0 eV is incident upon a photocell where the work function of the target metal is 1.60 eV, what is the maximum kinetic energy of ejected electrons?
 a. 4.6 eV
  c. 2.4 eV
  b. 4.8 eV
  d. 1.4 eV

Question 2

Light of wavelength 6.1  10-7 m has an energy of: (h = 6.63  10-34 Js, c = 3.00  108 m/s)
 a. 3.1  10-19 J
  c. 1.7  10-19 J
  b. 1.5  10-19 J
  d. 3.3  10-19 J



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SamMuagrove

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Answer to Question 1

C

Answer to Question 2

D




erika

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Reply 2 on: Jul 28, 2018
Excellent


isabelt_18

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

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