A double rainbow natural phenomenon.
June 12, 2020
- Reflection: When sunlight enters a raindrop, it undergoes internal reflection and bounces off the inside surface of the droplet.
- Refraction: As the light exits the raindrop, it refracts or changes direction due to the change in medium—from water to air. This bending of light occurs because the speed of light is different in water compared to air.
- Dispersion: The refracted light also undergoes dispersion, where it separates into its constituent colors due to the varying wavelengths of different colors. This dispersion causes the light to spread out into a spectrum.
- Primary Rainbow: The refracted and dispersed light from raindrops forms a primary rainbow, which appears as a semicircular arc in the sky with red on the outside and violet on the inside.
- Secondary Rainbow: In the case of a double rainbow, a secondary rainbow is also formed. The secondary rainbow appears as a larger, fainter arc positioned outside the primary rainbow. The colors of the secondary rainbow are arranged in the opposite order, with violet on the outside and red on the inside.
- Double Reflection: The secondary rainbow is formed by light that undergoes an additional reflection within the raindrop before exiting. This second reflection causes the light to follow a different path, resulting in the secondary rainbow being positioned at a higher angle in the sky.
- Intensity and Visibility: The secondary rainbow is usually fainter than the primary rainbow because the light undergoes more internal reflections and dispersion, leading to some light being lost and the colors appearing less vibrant.
Double rainbows are a stunning sight and occur when there is a sufficient amount of sunlight, along with rain showers in the opposite direction. The combination of reflection, refraction, and dispersion within raindrops creates the captivating double rainbow effect that never fails to mesmerize those fortunate enough to witness it.
We extend our heartfelt gratitude to the friend of our page for sharing the captivating picture with us. Your generosity in sharing such a beautiful moment is greatly appreciated. It's through these shared experiences that we can all marvel at the wonders of nature and find joy in the double rainbow's vibrant display. Thank you for enriching our community with your contribution!
