Question:medium

What is the relative efficiency of air molecules to scatter blue light ($\lambda = 470$ nm) as compared to red light ($\lambda = 640$ nm)?

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The Rayleigh Law ($\frac{1}{\lambda^4}$) is why the sky is blue! Shorter wavelengths (blue) scatter much more efficiently than longer wavelengths (red).
Updated On: May 20, 2026
  • 3.45
  • 1.83
  • 0.54
  • 0.29
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The Correct Option is A

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