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Rarecritical angle
The correct spelling is critical angle.
How to pronounce critical angle
noun
Say it like: Cri-tic-al -ang-le
The correct spelling is critical angle. The smallest angle of incidence for which light is totally reflected from a boundary between one medium and a less refractive one
Usage Examples
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Definition
noun
- 1.The smallest angle of incidence for which light is totally reflected from a boundary between one medium and a less refractive one
- 2.(aerodynamics) The smallest angle of attack of an airfoil at which lift suddenly decreases and drag suddenly increases
- 3.The smallest angle of a ramp or stairs considered uncomfortable or unsafe
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