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Thread: another physics 11 question

  1. #1 another physics 11 question 
    Forum Freshman
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    I have no idea where to start on this one, I've been trying at it for 2 days now, and I just don't understand.

    A ray of light is incident at 35.0 on a pane of glass with a thickness, t, of 5.00 mm and an index of refraction of n = 1.70. The rays entering the glass and leaving the glass are parallel, but the ray exiting the glass has been displaced. What is the displacement of the ray?

    [Hints: Let the length of the ray in the glass be represented by x. Look for useful triangles involving d and t. The value of d is between 1.38 mm and 1.46 mm.]



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  3. #2 Re: another physics 11 question 
    . DrRocket's Avatar
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    Quote Originally Posted by chasing.echoes
    I have no idea where to start on this one, I've been trying at it for 2 days now, and I just don't understand.

    A ray of light is incident at 35.0 on a pane of glass with a thickness, t, of 5.00 mm and an index of refraction of n = 1.70. The rays entering the glass and leaving the glass are parallel, but the ray exiting the glass has been displaced. What is the displacement of the ray?

    [Hints: Let the length of the ray in the glass be represented by x. Look for useful triangles involving d and t. The value of d is between 1.38 mm and 1.46 mm.]

    Snell's law plus trigonmetry should get you to a solution.


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