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Questions and Answers
Which type of scattering is responsible for the shorter wavelengths of light being scattered more?
Which type of scattering is responsible for the shorter wavelengths of light being scattered more?
- Rayleigh Scattering (correct)
- Combined Effect
- Atmospheric Refraction
- Mie Scattering
What is the effect of atmospheric refraction on the apparent size of the sun?
What is the effect of atmospheric refraction on the apparent size of the sun?
- It appears to change colors
- It appears smaller than its actual size
- It appears at its actual position
- It appears larger than its actual size (correct)
What is the outcome of the combination of Rayleigh and Mie scattering on the color of the sun?
What is the outcome of the combination of Rayleigh and Mie scattering on the color of the sun?
- It appears red
- It appears orange
- It appears yellowish (correct)
- It appears blue
What is the term for the bending of light as it passes through the atmosphere?
What is the term for the bending of light as it passes through the atmosphere?
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What is the effect of atmospheric refraction on the color of the sun?
What is the effect of atmospheric refraction on the color of the sun?
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Study Notes
Scattering of Light
- Rayleigh Scattering: shorter (blue) wavelengths are scattered more than longer (red) wavelengths by the tiny molecules of gases in the atmosphere
- Mie Scattering: longer wavelengths are scattered by the larger particles in the atmosphere, such as dust, water droplets, and pollen
- Combined Effect: the combination of Rayleigh and Mie scattering affects the color of the sun, making it appear yellowish
Atmospheric Refraction
- Bending of Light: the atmosphere bends light, making the sun appear higher in the sky than its actual position
- Angular Diameter: the apparent size of the sun is increased due to atmospheric refraction, making it appear larger than its actual size
- Color Dispersion: atmospheric refraction also affects the color of the sun, causing it to appear more yellow due to the bending of shorter wavelengths (blue and violet) more than longer wavelengths (red and orange)
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