critical angle

The term "critical angle" has specific meanings in different fields such as optics, aviation, and architecture, describing crucial thresholds related to light, airfoil performance, and safety, respectively.

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Definition

C1Optics

(technical, academic)The minimum angle of incidence at which light is completely reflected within a medium rather than passing into another medium.

Example

  • When the angle of incidence exceeds the critical angle, total internal reflection occurs.

C1Aviation

(technical, academic)The angle of attack at which an airfoil stalls, leading to a loss of lift and an increase in drag.

Example

  • Pilots must avoid exceeding the critical angle to prevent stalling.

C2Architecture

(technical)The angle at which a ramp or stairs becomes uncomfortable or unsafe for use.

Example

  • Designers ensure that ramps do not exceed the critical angle for safety.

Similar

Terms that have similar or relatively close meanings to "critical angle":

total internal reflectionangle of incidenceangle forright anglevertical angleangle shotplane angleangle quoteangle shootingalternate anglesangle bar