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Optics Problem

  1. Apr 30, 2013 #1
    Does anyone know how to solve this problem? I tried using the spherical interface formula (n1/p)+(n2/q)=((n2-n2)/R) and I get q=15cm which I cannot seem to relate to the answer provided (23cm). Anyone know the correct way to approach this problem?
    attachment.php?attachmentid=58375&stc=1&d=1367371157.jpg

    Thanks.
     

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  2. jcsd
  3. Apr 30, 2013 #2

    wukunlin

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    You probably need to account for the flat end of the rod as well.
     
  4. Apr 30, 2013 #3

    SammyS

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    Is this a Homework problem?
     
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