Podcast
Play an AI-generated podcast conversation about this lesson
Questions and Answers
What primarily causes the formation of a rainbow?
What primarily causes the formation of a rainbow?
- Reflection of sunlight in water droplets (correct)
- Absorption of light by clouds
- Refraction of light through a prism
- Scattering of light in the atmosphere
In which order does light undergo processes to create a rainbow?
In which order does light undergo processes to create a rainbow?
- Reflection, refraction, scattering
- Refraction, absorption, reflection
- Absorption, reflection, refraction
- Refraction, reflection, dispersion (correct)
What colors are typically visible in a rainbow?
What colors are typically visible in a rainbow?
- Red, orange, yellow, green, blue, indigo, violet (correct)
- Red, green, blue, yellow, purple
- Green, purple, pink, orange
- Blue, yellow, red, grey
Under what circumstances is a rainbow most likely to appear?
Under what circumstances is a rainbow most likely to appear?
Signup and view all the answers
Which of the following statements about the formation of a double rainbow is true?
Which of the following statements about the formation of a double rainbow is true?
Signup and view all the answers
Flashcards are hidden until you start studying
Study Notes
How Rainbows Form
- Rainbows are formed when sunlight interacts with water droplets in the air.
- Sunlight is composed of different colors, each with a different wavelength.
- When light passes through a water droplet, it is refracted, meaning it bends.
- The different colors of light are refracted at different angles, causing them to separate.
- As the light exits the water droplet, it is reflected internally and then refracted again, causing the colors to be further separated and dispersed.
Rainbow Formation Order
- Refraction of sunlight through a water droplet
- Internal reflection within the droplet
- Second refraction of light as it exits the droplet
Rainbow Colors
- Red, Orange, Yellow, Green, Blue, Indigo, Violet - ROYGBIV
When Rainbows Appear
- Rainbows are most likely to appear after a rain shower when there are still water droplets in the atmosphere.
- The sun must be shining at a low angle in the sky, typically between 40° and 42°.
- The observer must be positioned with their back to the sun and facing the rain.
Double Rainbows
- A double rainbow appears when sunlight is reflected internally twice within the water droplet.
- The colors in the secondary rainbow appear in reverse order (violet on top, red on bottom).
- The secondary rainbow is fainter than the primary rainbow as more light is lost during the second reflection.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
