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Author Question: An originally neutral electroscope is briefly touched with a positively charged glass rod. The ... (Read 20 times)

charchew

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on: Jul 29, 2018
An originally neutral electroscope is briefly touched with a positively charged glass rod. The electroscope
 
  A)
 
  remains neutral.
  B)
 
  becomes negatively charged.
  C)
 
  becomes positively charged.
  D)
 
  could become either positively or negatively charged, depending on the time of contact.

Question 2

What is the cutoff frequency for a metal surface that has a work function of 5.42 eV?
 
  A)
 
  1.31  1015 Hz
  B)
 
  2.01  1015 Hz
  C)
 
  3.01  1015 Hz
  D)
 
  5.02  1015 Hz
  E)
 
  6.04  1015 Hz


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allisonblackmore

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

C

Answer to Question 2

A


charchew

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Reply #2 on: Jul 29, 2018
TY


allisonblackmore

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Reply #3 on: Jul 29, 2018
You're welcome


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