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

AI Thread Summary
The discussion centers on whether two rays of light remain parallel after passing through a prism. It is concluded that the rays will remain parallel if they have the same wavelengths, as equal incidence and refraction angles are maintained. The conversation emphasizes a geometrical approach to light behavior in prisms. The participants acknowledge that the analysis assumes a monochromatic case for accuracy. Understanding these principles is essential for solving related problems in optics.
zade70
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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.
 
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They will remain parallel only if they have the same wavelengths.
 
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blue_leaf77 said:
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?
 
zade70 said:
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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