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How are Rainbows formed? Video Lecture | Physics for EmSAT Achieve

FAQs on How are Rainbows formed? Video Lecture - Physics for EmSAT Achieve

1. How are rainbows formed?
Ans. Rainbows are formed when sunlight is refracted, or bent, and then reflected inside raindrops, creating a spectrum of colors in the sky.
2. What causes the different colors in a rainbow?
Ans. The different colors in a rainbow are caused by the refraction and reflection of sunlight inside raindrops. Each color has a different wavelength, and when light is refracted and reflected, it separates into its component colors.
3. Can rainbows be seen at any time of the day?
Ans. Rainbows are most commonly seen when the sun is low in the sky, typically in the morning or late afternoon. This is because the angle of the sun's rays is important in order to create the necessary conditions for a rainbow to form.
4. Why do rainbows appear as an arc shape?
Ans. Rainbows appear as an arc shape because the light is refracted and reflected at different angles inside raindrops. This causes the light to spread out and form a circular shape, with the top part of the circle cut off by the horizon.
5. Can a rainbow ever be a full circle?
Ans. Yes, a rainbow can be a full circle under certain conditions. When the sun is very low in the sky, such as during sunrise or sunset, and rain is falling opposite to the sun, it is possible to see a full circle rainbow. However, these full circle rainbows are rare and are usually only visible from above, such as from an airplane or a high mountain.
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