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How does these rainbows water drops differ? I know it has to do with the size of water drops refracting light.

Is there a formula that determines the type of rainbow?

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Icebow

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Unlike this questions answer it does not illustrate how the reduction of water drops make less color. Also this ice bow does not follow this rule of thumb in that question.

Illustrations would be great!

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closed as too broad by kwinkunks, Jan Doggen, bon, Fred, farrenthorpe Feb 23 '18 at 21:26

Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

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    $\begingroup$ Here you have asked four different questions; please edit your question to specify your problem. I cannot downvote, so I'll just have to leave it. $\endgroup$ – Eevee Feb 22 '18 at 20:54
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    $\begingroup$ Okay, thanks for clarification. I'll try to answer all four :) $\endgroup$ – Eevee Feb 22 '18 at 21:11
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    $\begingroup$ I recommend reading some articles on Wikipedia, then asking one question at a time. Your questions should be fairly specific. $\endgroup$ – kwinkunks Feb 23 '18 at 12:39
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    $\begingroup$ This is a duplicate of an number of questions that have been asked on this site: Fog Bows: [What actually happens to reduce the perceived color in a 'white rainbow“ or ”fog-bow"? ](earthscience.stackexchange.com/questions/9180/…), [what causes rainbow, the colours and the shape ](earthscience.stackexchange.com/questions/7480/…). In the stack exchange search area just enter rainbows. $\endgroup$ – Fred Feb 23 '18 at 15:59
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    $\begingroup$ Possible duplicate of What actually happens to reduce the perceived color in a 'white rainbow" or "fog-bow"? $\endgroup$ – Fred Feb 23 '18 at 16:00