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Are the rays parallel after they come out of the prism?

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Homework Statement


Two rays of light fall on a surface of the prism. Do they remain parallel after they come out from the prism?

Homework Equations


sina/sinb=n2/n1

The Attempt at a Solution


I think they do, as the incidence angles are equal, the refraction angles are equal they become incidence angles which are still equal and will have equal refraction angles.
 

Answers and Replies

  • #2
blue_leaf77
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They will remain parallel only if they have the same wavelengths.
 
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  • #3
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They will remain parallel only if they have the same wavelengths.
We are studying at the light just in the geometrical aspect. Can you give me a hist to solve it basing on it?
 
  • #4
blue_leaf77
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We are studying at the light just in the geometrical aspect.
Then I guess the lecture currently still assume monochromatic (single wavelength) case and of course your answer should be correct.
 

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