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posted by  Superhoney on 11/5/2009 2:48:44 AM  |  status: Closed  |  Earned Karma: 25

Physics: Light reflection

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A light ray is incident normally to the long face (the hypotenuse) of a 45° -45° -90° prism surrounded by air, as shown in the figure below. Calculate the minimum index of refraction of the prism for which the ray will totally internally reflect at each of the two sides making the right angle.
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posted by E=mc*c (MNV) on 11/5/2009 4:40:14 AM  |  status: Live
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Response Details:
A light ray is incident normally to the long face (the hypotenuse) of a 45° -45° -90° prism surrounded by air, as shown in the figure below. Calculate the minimum index of refraction of the prism for which the ray will totally internally reflect at each of the two sides making the right angle.
the refractive index of the material of the prism in the above situation should be greater than or equal to √2.
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