Physics
High School (9–10)
Optics › Reflection of LightOptics › Refraction of LightOptics › Lenses and Optical InstrumentsChapter 6Light: Reflection and Refraction
You see your face in a spoon, and a straw in a glass of water looks broken. Light does both of these things, and it follows simple rules. In this chapter we find the rules of reflection and refraction. We use them to understand mirrors and lenses, to draw where an image forms, and to calculate its place and size with a formula. Python helps us draw and calculate.
Part of Physics · High School (9–10) (chapter 6)
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Reflection and Mirrors
Look at a flat mirror, then at the back of a spoon, then at the front. Each shows you a different face. In this course we learn how light is reflected, how a plane mirror forms an image, and how concave and convex mirrors form images that we can draw and also calculate.
Refraction of Light
A coin at the bottom of a bowl seems to rise when you pour in water. A pencil in a glass looks bent. In this course we find out why light bends when it goes from one material to another. We learn the laws of refraction and the refractive index, and we follow a ray through a glass slab.