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Author Question: An originally neutral electroscope is briefly touched with a positively charged glass rod. The ... (Read 16 times)

charchew

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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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Answer to Question 1

C

Answer to Question 2

A





 

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