A great site with heaps of interesting information. Also includes diagrams.
Has information on secondary rainbows and other phenomena not yet covered
here. Highly recommended.
Single page with good explanation. Only one diagram but still a good
overview for anyone just wanting to get the gist of how rainbows come to
Questions About Rainbows
This page includes lots of interesting facts
and answers to frequently asked questions - worth a look.
This site is fantastic. It has a diagram of the rays of light entering
a raindrop that allows you to change the colour of the light and the incident
angle to see what happens and an in-depth description of the physics involved
for anyone who wants more detail than that provided here. The parent site,
The Virtual Physics
Lab is probably worth bookmarking for its value in this and other area
Circles of Light - The mathematics
This site includes experiments for investigation of rainbows and questions
to guide students to a very good understanding. Some of the information
may be a bit beyond the average year 11 student but still well worth a
look - especially for help with work requirements such as the practical
This site has some really great diagrams and photos. Some iof the best
pics of secondary rainbows on the web. Good explanations too. Check this
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This site has lots of photos of rainbows in New South Wales. Worth
a look but read the copyright notice if you want to use any of the images.