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Refraction is the bending of light when it passes from one transparent medium to another. This concept is crucial for understanding the behavior of light in various applications such as lenses and optical instruments. The chapter explores the laws of refraction, the refractive index, and practical applications through examples and illustrations.
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References
p4.pdfClass Notes
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Term: Refraction of Light
Definition: The change in direction of a light ray when it passes obliquely from one transparent medium to another.
Term: Refractive Index (μ)
Definition: The ratio of the speed of light in vacuum to the speed of light in the medium, determining how much the light bends.
Term: Incident Ray
Definition: The ray of light that strikes the surface of the medium.
Term: Refracted Ray
Definition: The ray of light that bends as it enters a different medium.
Term: Angle of Incidence (i)
Definition: The angle between the incident ray and the normal at the point of incidence.
Term: Angle of Refraction (r)
Definition: The angle between the refracted ray and the normal.