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Is it possible for a given lens to act as converging lens

  1. Feb 11, 2010 #1
    Question:
    Is it possible for a given lens to act as converging lens in one medium and a diverging lens in another?



    What i was thinking:
    Yes. Let say we put the lens underwater. It slows the light down and turns the image upside down as it passes through the converging lens, turning it into a diverging lens.

    Is this right?
     
    Last edited: Feb 11, 2010
  2. jcsd
  3. Feb 11, 2010 #2

    Matterwave

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    Re: Lens

    Well, with lenses all there is to it is Snell's law right?
     
  4. Feb 11, 2010 #3

    rl.bhat

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    Re: Lens

    Yes. If the refractive index of the converging lens is smaller than the surrounding medium, it may act as a diverging lens.
     
  5. Feb 11, 2010 #4

    Matterwave

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    Re: Lens

    I think you should have let him figure that out himself...
     
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