Rainbows

Assuming that the index of refraction of water is 4=3 and that raindrops are spherical,
show that the location of a rainbow is approximately 42± above the line from
the sun to you. If you see a double rainbow, what is the angle of the second one?
Even triple rainbows are possible, although they are difficult to see; where is the
third one?

Question

Rainbows

Assuming that the index of refraction of water is 4=3 and that raindrops are spherical,
show that the location of a rainbow is approximately 42± above the line from
the sun to you. If you see a double rainbow, what is the angle of the second one?
Even triple rainbows are possible, although they are difficult to see; where is the
third one?

fellowroot · Answer

Sorry let me repost

fellowroot · Answer

Assuming that the index of refraction of water is 4/3 and that raindrops are spherical,
show that the location of a rainbow is approximately 42 degrees above the line from
the sun to you. If you see a double rainbow, what is the angle of the second one?
Even triple rainbows are possible, although they are difficult to see; where is the
third one?