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Author Question: What is the frequency, in hertz, of a sound wave (v = 340 m/s) with a wavelength of 0.20 ... (Read 87 times)

theo

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on: Jul 28, 2018
What is the frequency, in hertz, of a sound wave (v = 340 m/s) with a wavelength of 0.20 m?

Question 2

What is the maximum kinetic energy (in eV) 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. 1.9
  b. 1.2
  c. 3.1
  d. zero
  e. 6.2


sailorcrescent

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

1.7  103 Hz

Answer to Question 2

b


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theo

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Reply #2 on: Jul 28, 2018
TY


sailorcrescent

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Reply #3 on: Jul 28, 2018
You're welcome


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