Refraction of Light: Is There No Refraction?

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SUMMARY

Refraction of light occurs when it transitions between different media, such as air and water. When light travels in the same direction as the normal, the refraction angle is indeed 0 degrees, meaning there is no change in direction. This is confirmed by the mathematical principle that the sine of zero is 0, indicating no refraction occurs in this scenario.

PREREQUISITES
  • Understanding of basic optics principles
  • Familiarity with the concept of the normal line in refraction
  • Knowledge of trigonometric functions, specifically sine
  • Basic knowledge of light behavior in different media
NEXT STEPS
  • Research Snell's Law and its application in refraction
  • Explore the behavior of light in various media beyond air and water
  • Study the implications of refraction in optical devices
  • Learn about the critical angle and total internal reflection
USEFUL FOR

Students of physics, educators teaching optics, and anyone interested in the principles of light behavior and refraction.

AkshayPitt
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I understand that when light goes between air and water, refraction occurs (either towards or away from the normal). If the light going between air and water is already going in the same direction as the normal, is there no refraction (or a refraction angle of 0 degrees)?

Thank you.
 
Science news on Phys.org
AkshayPitt said:
same direction as the normal
What is the sin of zero?
 
sin(0) = 0

Thanks a lot for your help!
 

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