P1.5.4 Wave Properties - Refraction 0.0 / 5 ? PhysicsWavesGCSEAQA Created by: MaddiCreated on: 30-04-14 14:36 What is refraction? Refraction is the change of direction of waves when they travel across a boundary. 1 of 5 Why does refraction take place? Because waves change speed when they cross a boundary. 2 of 5 What can we say about the refraction of a light ray when it goes through glass? When a light ray refracts as it travels from air to glass, the angle of refraction is less than the angle of incidence. 3 of 5 What can we say about the refraction of a light ray when it goes from glass into air? When a light ray refracts as it travels from glass to air, the angle of refraction is more than the angle of incidence. 4 of 5 Why does light split up into different colours when it passes through a triangular prism? Because different wavelengths of light are refracted by different amounts 5 of 5
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