Lenses 0.0 / 5 ? PhysicsLight and OpticsGCSEAQA Created by: aminasdCreated on: 03-02-15 19:00 What is refraction? The change of direction of light as it passes from one medium to another 1 of 8 What happens if light enters a medium at an angle? It gets refracted 2 of 8 What happens when a light ray goes from a less dense to a more dense medium? It bends towards the normal 3 of 8 What is the refractive index? The amount that a material bends by/how much it slows down light? 4 of 8 How do you work out the refractive index? Sin I/sin r 5 of 8 What is the focal length? The distance from the lens to the principle focus 6 of 8 What happens to light rays in a coves or converging lens? Parallel rays of light are brought to a focus at a principal focus 7 of 8 How is the magnification produced by a lens calculated? Image height / object height 8 of 8
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