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

Click For Summary
SUMMARY

The discussion centers on whether two rays of light remain parallel after passing through a prism. It is established that the rays will remain parallel if they have the same wavelengths, as the incidence angles and refraction angles must be equal. The analysis is conducted from a geometrical optics perspective, specifically under the assumption of monochromatic light. The equation used in the discussion, sina/sinb=n2/n1, supports the conclusion regarding the relationship between angles and refractive indices.

PREREQUISITES
  • Understanding of geometrical optics principles
  • Familiarity with the refractive index and Snell's Law
  • Knowledge of light behavior in prisms
  • Concept of monochromatic light
NEXT STEPS
  • Study Snell's Law in detail, focusing on its applications in optics
  • Explore the effects of different wavelengths on light refraction
  • Investigate the behavior of polychromatic light in prisms
  • Learn about the principles of geometrical optics and their applications
USEFUL FOR

Students studying physics, particularly those focusing on optics, as well as educators and anyone interested in the behavior of light in prisms.

zade70
Messages
61
Reaction score
0

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.
 
Physics news on Phys.org
They will remain parallel only if they have the same wavelengths.
 
  • Like
Likes   Reactions: mfb
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.
 
  • Like
Likes   Reactions: zade70

Similar threads

Replies
11
Views
2K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 7 ·
Replies
7
Views
2K
Replies
4
Views
2K
Replies
22
Views
3K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 4 ·
Replies
4
Views
3K
Replies
2
Views
2K
  • · Replies 6 ·
Replies
6
Views
5K
  • · Replies 1 ·
Replies
1
Views
2K