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Homework Help: Reflection and Refraction

  1. Jan 25, 2012 #1
    An object is placed 11 cm from a certain mirror. The image is half the height of the object, inverted, and real.


    1/p+1/i=1/f



    ??? Clueless because I don't know how to set up the equation int his kind of situation.
     
  2. jcsd
  3. Jan 25, 2012 #2

    tiny-tim

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    Welcome to PF!

    Hi Phower Power! Welcome to PF! :smile:
    I don't get it …

    I assume you do know how to set it up in some other situation? :confused:

    Just do the same, and convert "The image is half the height of the object, inverted, and real" into an equation also.
     
  4. Jan 25, 2012 #3
    do you know the equation for magnification?
     
  5. Jan 26, 2012 #4
    Nm, I got it! =)

    Ho/Hi = magnification

    Then I plug it in! Thank you for the clues
     
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