Podcast
Questions and Answers
What is refraction?
What is refraction?
- The bending of light when it passes from one substance into another (correct)
- The reflection of light when it passes through a medium
- The scattering of light as it moves through space
- The absorption of light by a material
Why does the sun appear distorted at sunset?
Why does the sun appear distorted at sunset?
- Due to the rotation of the Earth
- Due to changes in the sun's shape
- Due to how light bends in Earth’s atmosphere (correct)
- Due to refraction in space
What happens to parallel light rays due to refraction?
What happens to parallel light rays due to refraction?
- They can converge to a focus (correct)
- They disperse in different directions
- They remain parallel
- They become brighter
What is the focal plane?
What is the focal plane?
What is the orientation of the image behind a single (convex) lens?
What is the orientation of the image behind a single (convex) lens?
What is the function of charge-coupled devices (CCDs) in digital cameras?
What is the function of charge-coupled devices (CCDs) in digital cameras?
Why does the sun appear distorted at sunset according to the text?
Why does the sun appear distorted at sunset according to the text?
What is the thickness of the CCD used in the Kepler telescope, as mentioned in the text?
What is the thickness of the CCD used in the Kepler telescope, as mentioned in the text?
What is the role of a convex lens in relation to the image it produces?
What is the role of a convex lens in relation to the image it produces?
What effect does refraction have on parallel light rays?
What effect does refraction have on parallel light rays?