All Questions
8
questions
10
votes
2
answers
2k
views
Is it possible to witness a rainbow while facing the sun?
We know that a rainbow occurs due to the refraction and reflection of light inside raindrops. We also know that inside spherical raindrops total internal reflection is not possible. So some light is ...
- 123
33
votes
3
answers
3k
views
A Rainbow Paradox
I was studying the phenomena of the formation of a rainbow. In my book, the following diagram is given:
So, the rays at the red end of the spectrum make a larger angle with the incident ray than the ...
- 1,064
1
vote
3
answers
387
views
How does a rainbow show all of its colours?
My question is tied closely to this one, asked a while back on the website. As far as my understanding goes, a rainbow is formed by sunlight undergoing two refractions and a reflection inside ...
1
vote
1
answer
2k
views
In a rainbow, why is the top colour red and violet on bottom even though red emerges farther (42 degrees) than violet (40) when seen in a single drop?
I don't understand this image or why primary rainbow has red at the top even though in a single drop red is deviated most.
- 21
1
vote
2
answers
214
views
Dispersion in Rainbows
So I have tried searching for the working of a rainbow. I found many sources and the explanation was clear. I still have a problem though. Since dispersion happens due to different refractive indices ...
- 1,451
0
votes
2
answers
5k
views
Which of the following phenomena are responsible for rainbows?
Which of the following phenomena of light are responsible for the formation of a rainbow?
1) reflection, refraction, dispersion
2) refraction, dispersion, total internal reflection
3) ...
- 139
3
votes
3
answers
1k
views
Order of colors after reflection in a raindrop
I studied two figures of sunlight reflecting in a raindrop:
In the first image, red is shown above violet, but in the second image, red is below violet. Are both cases possible?
- 299
6
votes
2
answers
2k
views
Why is rainbow always circular?
From the article that I read on physics classroom website on rainbow, rainbow is formed with red on the top and violet on the bottom because violet refracts more, and has a smaller angle of deviation ...
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