Sunday, 3 March 2013

3.18 know and use the relationship between refractive index, angle of incidence and angle of refraction:

Refractive index= sin (angle of incidence)/ sin (angle of refraction)

n= sin(i)/ sin(r)
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7 comments:

  1. Unknown5 April 2015 at 08:49

    example please

    ReplyDelete
  2. Unknown5 April 2015 at 08:49

    example please

    ReplyDelete
  3. Unknown30 December 2015 at 07:18

    u really love to blank me dont u. what did i do to u

    ReplyDelete
    Replies
    1. HannahHelp30 December 2015 at 17:52

      Oh sorry Algernon! I think I probably didn't answer because I have no idea haha, I have completely forgotten how to do physics! Also I am not updating these blogs on a regular basis so I might not even have read your comments until now.

      The penultimate section on this page, titeled flickr physics photo, should be helpful:
      http://www.physicsclassroom.com/class/refrn/Lesson-2/Snell-s-Law
      :)

      Delete
  4. Unknown4 January 2016 at 09:59

    You accidentally put angle of reflection in the equation, it should be angle of refraction!

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  5. Unknown5 January 2016 at 08:48

    An example might be what would the refractive index of an object be if the angle of incidence is 30 degrees and the angle of refraction is 19 degrees you'd do sin30/sin19= 1.51 therefore the refractive index is 1.51

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    Replies
    1. Unknown5 January 2016 at 08:49

      And if you wanted to work out what the angle of incidence or redaction is and you have the refractive index and one of the 2 already you just rearrange the formula

      Delete

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