'Ray travels' diaporamas de présentation

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Refraction & Refractive Index

Refraction & Refractive Index. Noadswood Science, 2013. Refraction & Refractive Index. To explain refractive index. Refraction. Light travels in straight lines Light can bend at the boundary between two materials with different densities - this is called refraction.

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Reflection and Refraction

Reflection and Refraction. Reflection. Two laws of reflection Angle of incidence = angle of reflection The angle of incidence, angle of reflection and normal all lie in the same plane. Refraction. Light travels more slowly in glass, perspex etc than in air or in a vacuum

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