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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 118 times)

erika

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

C

Answer to Question 2

D


erika

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Reply 2 on: Jul 28, 2018
Great answer, keep it coming :)

laurnthompson

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Reply 3 on: Yesterday
Excellent

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