Rainbow's Red & Blue: Why Light Refraction is Reversed

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SUMMARY

The phenomenon of light refraction in raindrops results in an inverted color arrangement, where red appears at the bottom and blue at the top when viewed through the drop. However, when observing a rainbow, the color sequence is reversed, with red at the top and blue at the bottom. This inversion occurs due to the way light bends and reflects within the spherical shape of a raindrop. Observing raindrops on surfaces like windows can provide a practical demonstration of this optical effect.

PREREQUISITES
  • Understanding of light refraction principles
  • Basic knowledge of color theory
  • Familiarity with optics and lens behavior
  • Experience with practical observation techniques
NEXT STEPS
  • Research the physics of light refraction in spherical objects
  • Explore the color spectrum and its relationship to light wavelengths
  • Study the formation of rainbows and their color order
  • Investigate practical experiments demonstrating light behavior in raindrops
USEFUL FOR

Students of physics, educators teaching optics, and anyone interested in the science behind natural phenomena like rainbows.

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why light refraction by the rain drop is red colour at bottom but blue colour on top . However we can see the rainbow is that :the red colour is at top and the blue is at bottom?
 
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try looking closely at a rain drop on your window the next time you get a chance and you will see that the image of everything outside is inverted.
 

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