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Author Question: When we consider the distance a pendulum swings to and fro we're talking about the pendulum's A) ... (Read 90 times)

Lobcity

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on: Jul 29, 2018
When we consider the distance a pendulum swings to and fro we're talking about the pendulum's
 
  A) frequency.
  B) period.
  C) wavelength.
  D) amplitude.

Question 2

A metal has a work function of 4.50 eV. Find the maximum kinetic energy of the photoelectrons if light of wavelength 250 nm shines on the metal. (1 eV = 1.60  10-19 J, c = 3.00  108 m/s, h = 6.626  10-34 J  s)
 
  A) 0.00 eV
  B) 0.37 eV
  C) 0.47 eV
  D) 0.53 eV


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Madisongo23

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Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: D

Answer to Question 2

C


Lobcity

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Reply #2 on: Jul 29, 2018
Thank you!


Madisongo23

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Reply #3 on: Jul 29, 2018
Always glad to help...


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