Camera question

  1. Dec 12, 2007 #1
    Usha wants to take a picture of her own image in a plane mirror. At what distance should the camera lens be focussed if it is positioned 2.3 m in front of the mirror?


    is it 2.3*2 ?... 4.6m ??
     
  2. jcsd
  3. Dec 12, 2007 #2

    rl.bhat

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    In mirror the object distance = image distance. Find the distance between Usha and her image and focus the camera.
     
  4. Dec 13, 2007 #3
    so is it 4.6m?, since distance in the mirror is 2.3 m and image distance is also 2.3m
     
  5. Dec 13, 2007 #4

    mgb_phys

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    correct
     
  6. Dec 13, 2007 #5
    thankyou sir
     
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