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Rainbow - Wikipedia


A rainbow is a meteorological phenomenon that is caused by reflection, refraction and ... In a primary rainbow, the arc shows red on the outer part and violet on the ... In a double rainbow, a secon...

Rainbow Formation - The Physics Classroom


An observer on the ground observes a half-circle of color with red being the color perceived on the outside or top of the bow. Those who are fortunate enough to ...

Frequently Asked Questions about Rainbows - Atmospheric Optics


... for red than blue. Thus red is on the outside and blue is on the inside of the rainbow.

Rainbows: How They Form & How to See Them - Live Science


Mar 15, 2011 ... A single, or primary, rainbow has red on the outside or top of the bow and blue on the inside. Usually the radius of the arc is equal to about ...

Rainbows | Causes of Color - Webexhibits


Ideal conditions for rainbows are sunlight and water droplets, usually as rain, but ... primary rainbow (lower) run from violet on the inside to red on the outside.

rainbow - The Worlds of David Darling


The primary rainbow, with red on the outside and violet inside, results from one total internal reflection. Sometimes a dimmer secondary rainbow with reversed ...

Primary and Secondary Rainbows - Hyperphysics


Rainbows result from refraction of sunlight in falling water droplets plus ... If the drops are large, 1 millimeter or more in diameter, red, green, and violet are bright ... than the sky just outside the secondary rainbow, but this is a smaller difference.

Rainbow - New World Encyclopedia


Jun 23, 2015 ... The sky inside the primary bow is brighter than that outside. ... It takes the form of a multicolored arc, with red on the outer edge of the arc and ...

Rainbows - Richard Fitzpatrick


A rainbow is an arc of light, with an angular radius of $42^\circ$ ... The colours of a rainbow vary smoothly from red on the outside of the arc to violet on the inside ...

What are the colors of the rainbow? | Reference.com


There are seven visible colors of the rainbow: red, orange, yellow, green, blue, indigo ... which results in a second arc being visible outside of the primary arc.