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the claim

Supernumerary rainbows are caused by interference between rays of light inside raindrops

the verdict
SUPPORTED
the evidence backs this
Recorded sources
3 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that Supernumerary rainbows are caused by interference between rays of light inside raindrops?

Yes. Supernumerary rainbows are indeed caused by the interference of light waves following internal reflection within raindrops, a phenomenon explained by wave optics and Airy theory.

Verdict: SUPPORTED · 3 sources for, 0 against · Last checked

The analysis

The retrieved literature consistently supports the wave-optical and interference-based mechanism of supernumerary rainbows. One study and 11 detail how interference and wave optics (as opposed to pure geometric optics) account for supernumerary bows, and one study discusses the interference phenomena of internal rays in spherical particles. No papers contradict the claim.

Evidence for · 3
Physically Based Rendering of Rainbows under Various Atmospheric Conditions
2010
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Kanamori, S., Fujiwara, K., Yoshinobu, T., Raytchev, B., Tamaki, T., & Kaneda, K. (2010). Physically Based Rendering of Rainbows under Various Atmospheric Conditions. doi.org. https://doi.org/10.1109/PacificGraphics.2010.13

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More for · 2
High-order rainbows of a spherical particle produced by near-grazing incident light.
2017
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JA, L. (2017). High-order rainbows of a spherical particle produced by near-grazing incident light.. doi.org. https://doi.org/10.1364/ao.56.000g75

Mie Theory, Airy Theory, and the Natural Rainbow
1997
Get citation
Lee, R. L. (1997). Mie Theory, Airy Theory, and the Natural Rainbow. doi.org. https://doi.org/10.1364/lcoa.1997.lmb.1

Receipt History
first checked04 Aug 2026
judged → SUPPORTED · 8004 Aug 2026
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