﻿504 
  L. 
  Page— 
  The 
  Photoelectric 
  Effect. 
  

  

  Figs. 
  2-7. 
  

  

  

  +- 
  

  

  X. 
  

  

  Al-AI 
  & 
  

  

  / 
  i 
  

   / 
  i 
  

  

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  raped 
  

  

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   / 
  / 
  

  

  / 
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  / 
  / 
  

   / 
  / 
  

  

  / 
  / 
  

  

  / 
  / 
  

  

  / 
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  / 
  

  

  / 
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  -2.0 
  

  

  -1.0 
  

  

  Fig. 
  £ 
  

  

  1.0 
  

  

  Acc. 
  Tbt-Voirs 
  

  

  -1.0 
  

  

  to 
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   Fig. 
  3 
  

  

  

  

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  j-AI 
  / 
  

  

  // 
  

   / 
  / 
  

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  / 
  

  

  / 
  / 
  

  

  

  Cu-Cu 
  

  

  / 
  

  

  

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  / 
  

   / 
  / 
  

   / 
  / 
  

   / 
  / 
  

   / 
  / 
  

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  Unscraped 
  

  

  / 
  1 
  

  

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  i 
  

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  i 
  

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  ' 
  /^ 
  

  

  Unscraped 
  

  

  

  

  

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  ~^" 
  -1.0 
  

  

  1.0 
  

  

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  lo 
  io 
  

  

  

  Ffg.4 
  

  

  

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  Zn-AI 
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  Uhscraped 
  

  

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  1 
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  1 
  

  

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  io 
  

  

  

  F 
  'S- 
  6 
  

  

  

  Fiq.7 
  

  

  