Critical Angle
Chinese equivalent: 临界角
Critical Angle The angle of incidence for which the angle of refraction is 90 degrees, marking the onset of total internal reflection.
Syllabus path: Optics › Geometrical Optics › Law of Refraction
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CSCA Physics Exam Glossary
Definition
Critical Angle The angle of incidence for which the angle of refraction is 90 degrees, marking the onset of total internal reflection.
Related tutorial and examples
Law of Refraction
Topic: Optics > Geometrical Optics > Law of Refraction Law of Refraction (Snell's Law) 1. Conceptual Definition The phenomenon where the direction of light changes when it passes obliquely from one medium into another. It is the basis for lenses, mirages, and fiber optics. 2. Cor…
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